fitting.py @ 2b875e4c

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalccostrafo411magnetic_scattrelease-4.1.1release-4.1.2release-4.2.2release_4.0.1ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload

Last change on this file since 2b875e4c was 9afebe1, checked in by butler, 10 years ago
patch to Calc1D and Calc2D to deal with problem of threads not handling a stop thread properly causing 2 threads to trample on each other. Thread issues in general may be at the heart of many of our instabilities and should be investigated further.
Property mode set to `100644`
File size: 92.1 KB

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1	"""
2	Fitting perspective
3	"""
4	################################################################################
5	#This software was developed by the University of Tennessee as part of the
6	#Distributed Data Analysis of Neutron Scattering Experiments (DANSE)
7	#project funded by the US National Science Foundation.
8	#
9	#See the license text in license.txt
10	#
11	#copyright 2009, University of Tennessee
12	################################################################################
13	import re
14	import sys
15	import os
16	import wx
17	import logging
18	import numpy
19	import time
20	from copy import deepcopy
21	import models
22
23	from sans.dataloader.loader import Loader
24	from sans.guiframe.dataFitting import Data2D
25	from sans.guiframe.dataFitting import Data1D
26	from sans.guiframe.dataFitting import check_data_validity
27	from sans.guiframe.events import NewPlotEvent
28	from sans.guiframe.events import StatusEvent
29	from sans.guiframe.events import EVT_SLICER_PANEL
30	from sans.guiframe.events import EVT_SLICER_PARS_UPDATE
31	from sans.guiframe.gui_style import GUIFRAME_ID
32	from sans.guiframe.plugin_base import PluginBase
33	from sans.guiframe.data_processor import BatchCell
34	from sans.fit.Fitting import Fit
35	from .console import ConsoleUpdate
36	from .fitproblem import FitProblemDictionary
37	from .fitpanel import FitPanel
38	from .fit_thread import FitThread
39	from .pagestate import Reader
40	from .fitpage import Chi2UpdateEvent
41	from sans.perspectives.calculator.model_editor import TextDialog
42	from sans.perspectives.calculator.model_editor import EditorWindow
43	from sans.guiframe.gui_manager import MDIFrame
44
45	MAX_NBR_DATA = 4
46	SANS_F_TOL = 5e-05
47
48	(PageInfoEvent, EVT_PAGE_INFO) = wx.lib.newevent.NewEvent()
49
50
51	if sys.platform == "win32":
52	ON_MAC = False
53	else:
54	ON_MAC = True
55
56
57
58	class Plugin(PluginBase):
59	"""
60	Fitting plugin is used to perform fit
61	"""
62	def __init__(self, standalone=False):
63	PluginBase.__init__(self, name="Fitting", standalone=standalone)
64
65	#list of panel to send to guiframe
66	self.mypanels = []
67	# reference to the current running thread
68	self.calc_2D = None
69	self.calc_1D = None
70
71	self.color_dict = {}
72
73	self.fit_thread_list = {}
74	self.residuals = None
75	self.weight = None
76	self.fit_panel = None
77	self.plot_panel = None
78	# Start with a good default
79	self.elapsed = 0.022
80	# the type of optimizer selected, park or scipy
81	self.fitter = None
82	self.fit_panel = None
83	#let fit ready
84	self.fitproblem_count = None
85	#Flag to let the plug-in know that it is running stand alone
86	self.standalone = True
87	## dictionary of page closed and id
88	self.closed_page_dict = {}
89	## Fit engine
90	self._fit_engine = 'scipy'
91	self._gui_engine = None
92	## Relative error desired in the sum of squares (float); scipy only
93	self.ftol = SANS_F_TOL
94	self.batch_reset_flag = True
95	#List of selected data
96	self.selected_data_list = []
97	## list of slicer panel created to display slicer parameters and results
98	self.slicer_panels = []
99	# model 2D view
100	self.model2D_id = None
101	#keep reference of the simultaneous fit page
102	self.sim_page = None
103	self.sim_menu = None
104	self.batch_page = None
105	self.batch_menu = None
106	self.index_model = 0
107	self.test_model_color = None
108	#Create a reader for fit page's state
109	self.state_reader = None
110	self._extensions = '.fitv'
111	self.scipy_id = wx.NewId()
112	self.park_id = wx.NewId()
113	self.menu1 = None
114	self.new_model_frame = None
115
116	self.temp_state = []
117	self.state_index = 0
118	self.sfile_ext = None
119	# take care of saving data, model and page associated with each other
120	self.page_finder = {}
121	# Log startup
122	logging.info("Fitting plug-in started")
123	self.batch_capable = self.get_batch_capable()
124
125	def get_batch_capable(self):
126	"""
127	Check if the plugin has a batch capability
128	"""
129	return True
130
131	def create_fit_problem(self, page_id):
132	"""
133	Given an ID create a fitproblem container
134	"""
135	self.page_finder[page_id] = FitProblemDictionary()
136
137	def delete_fit_problem(self, page_id):
138	"""
139	Given an ID create a fitproblem container
140	"""
141	if page_id in self.page_finder.iterkeys():
142	del self.page_finder[page_id]
143
144	def add_color(self, color, id):
145	"""
146	adds a color as a key with a plot id as its value to a dictionary
147	"""
148	self.color_dict[id] = color
149
150	def on_batch_selection(self, flag):
151	"""
152	switch the the notebook of batch mode or not
153	"""
154	self.batch_on = flag
155	if self.fit_panel is not None:
156	self.fit_panel.batch_on = self.batch_on
157
158	def populate_menu(self, owner):
159	"""
160	Create a menu for the Fitting plug-in
161
162	:param id: id to create a menu
163	:param owner: owner of menu
164
165	:return: list of information to populate the main menu
166
167	"""
168	#Menu for fitting
169	self.menu1 = wx.Menu()
170	id1 = wx.NewId()
171	simul_help = "Add new fit panel"
172	self.menu1.Append(id1, '&New Fit Page', simul_help)
173	wx.EVT_MENU(owner, id1, self.on_add_new_page)
174	self.menu1.AppendSeparator()
175	self.id_simfit = wx.NewId()
176	simul_help = "Constrained or Simultaneous Fit"
177	self.menu1.Append(self.id_simfit, '&Constrained or Simultaneous Fit', simul_help)
178	wx.EVT_MENU(owner, self.id_simfit, self.on_add_sim_page)
179	self.sim_menu = self.menu1.FindItemById(self.id_simfit)
180	self.sim_menu.Enable(False)
181	#combined Batch
182	self.id_batchfit = wx.NewId()
183	batch_help = "Combined Batch"
184	self.menu1.Append(self.id_batchfit, '&Combine Batch Fit', batch_help)
185	wx.EVT_MENU(owner, self.id_batchfit, self.on_add_sim_page)
186	self.batch_menu = self.menu1.FindItemById(self.id_batchfit)
187	self.batch_menu.Enable(False)
188	self.menu1.AppendSeparator()
189	#Set park engine
190	scipy_help = "Scipy Engine: Perform Simple fit. More in Help window...."
191	self.menu1.AppendCheckItem(self.scipy_id, "Simple FitEngine [LeastSq]",
192	scipy_help)
193	wx.EVT_MENU(owner, self.scipy_id, self._onset_engine_scipy)
194
195	park_help = "Park Engine: Perform Complex fit. More in Help window...."
196	self.menu1.AppendCheckItem(self.park_id, "Complex FitEngine [ParkMC]",
197	park_help)
198	wx.EVT_MENU(owner, self.park_id, self._onset_engine_park)
199
200	self.menu1.FindItemById(self.scipy_id).Check(True)
201	self.menu1.FindItemById(self.park_id).Check(False)
202	self.menu1.AppendSeparator()
203	self.id_tol = wx.NewId()
204	ftol_help = "Change the current FTolerance (=%s) " % str(self.ftol)
205	ftol_help += "of Simple FitEngine..."
206	self.menu1.Append(self.id_tol, "Change FTolerance",
207	ftol_help)
208	wx.EVT_MENU(owner, self.id_tol, self.show_ftol_dialog)
209	self.menu1.AppendSeparator()
210
211	self.id_reset_flag = wx.NewId()
212	resetf_help = "BatchFit: If checked, the initial param values will be "
213	resetf_help += "propagated from the previous results. "
214	resetf_help += "Otherwise, the same initial param values will be used "
215	resetf_help += "for all fittings."
216	self.menu1.AppendCheckItem(self.id_reset_flag,
217	"Chain Fitting [BatchFit Only]",
218	resetf_help)
219	wx.EVT_MENU(owner, self.id_reset_flag, self.on_reset_batch_flag)
220	chain_menu = self.menu1.FindItemById(self.id_reset_flag)
221	chain_menu.Check(not self.batch_reset_flag)
222	chain_menu.Enable(self.batch_on)
223
224	self.menu1.AppendSeparator()
225	self.edit_model_menu = wx.Menu()
226	# Find and put files name in menu
227	try:
228	self.set_edit_menu(owner=owner)
229	except:
230	raise
231
232	self.id_edit = wx.NewId()
233	editmodel_help = "Edit customized model sample file"
234	self.menu1.AppendMenu(self.id_edit, "Edit Custom Model",
235	self.edit_model_menu, editmodel_help)
236	#create menubar items
237	return [(self.menu1, self.sub_menu)]
238
239	def edit_custom_model(self, event):
240	"""
241	Get the python editor panel
242	"""
243	id = event.GetId()
244	label = self.edit_menu.GetLabel(id)
245	from sans.perspectives.calculator.pyconsole import PyConsole
246	filename = os.path.join(models.find_plugins_dir(), label)
247	frame = PyConsole(parent=self.parent, manager=self,
248	panel=self.fit_panel,
249	title='Advanced Custom Model Editor',
250	filename=filename)
251	self.put_icon(frame)
252	frame.Show(True)
253
254	def delete_custom_model(self, event):
255	"""
256	Delete custom model file
257	"""
258	id = event.GetId()
259	label = self.delete_menu.GetLabel(id)
260	toks = os.path.splitext(label)
261	path = os.path.join(models.find_plugins_dir(), toks[0])
262	try:
263	for ext in ['.py', '.pyc']:
264	p_path = path + ext
265	os.remove(p_path)
266	self.update_custom_combo()
267	if os.path.isfile(p_path):
268	msg = "Sorry! Could not be able to delete the default "
269	msg += "custom model... \n"
270	msg += "Please manually remove the files (.py, .pyc) "
271	msg += "in the 'plugin_models' folder \n"
272	msg += "inside of the SansView application, "
273	msg += "and try it again."
274	wx.MessageBox(msg, 'Info')
275	#wx.PostEvent(self.parent, StatusEvent(status=msg, type='stop',
276	# info='warning'))
277	else:
278	self.delete_menu.Delete(id)
279	for item in self.edit_menu.GetMenuItems():
280	if item.GetLabel() == label:
281	self.edit_menu.DeleteItem(item)
282	msg = "The custom model, %s, has been deleted."% label
283	wx.PostEvent(self.parent, StatusEvent(status=msg,
284	type='stop', info='info'))
285	break
286	except:
287	msg ='Delete Error: \nCould not delete the file; Check if in use.'
288	wx.MessageBox(msg, 'Error')
289
290	def make_sum_model(self, event):
291	"""
292	Edit summodel template and make one
293	"""
294	id = event.GetId()
295	model_manager = models.ModelManager()
296	model_list = model_manager.get_model_name_list()
297	plug_dir = models.find_plugins_dir()
298	textdial = TextDialog(None, self, -1, 'Easy Sum/Multi(p1, p2) Editor',
299	model_list, plug_dir)
300	self.put_icon(textdial)
301	textdial.ShowModal()
302	textdial.Destroy()
303
304	def make_new_model(self, event):
305	"""
306	Make new model
307	"""
308	if self.new_model_frame != None:
309	self.new_model_frame.Show(False)
310	self.new_model_frame.Show(True)
311	else:
312	id = event.GetId()
313	dir_path = models.find_plugins_dir()
314	title = "New Custom Model Function"
315	self.new_model_frame = EditorWindow(parent=self, base=self,
316	path=dir_path, title=title)
317	self.put_icon(self.new_model_frame)
318	self.new_model_frame.Show(True)
319
320	def update_custom_combo(self):
321	"""
322	Update custom model list in the fitpage combo box
323	"""
324	custom_model = 'Customized Models'
325	try:
326	# Update edit menus
327	self.set_edit_menu_helper(self.parent, self.edit_custom_model)
328	self.set_edit_menu_helper(self.parent, self.delete_custom_model)
329	temp = self.fit_panel.reset_pmodel_list()
330	if temp:
331	# Set the new custom model list for all fit pages
332	for uid, page in self.fit_panel.opened_pages.iteritems():
333	if hasattr(page, "formfactorbox"):
334	page.model_list_box = temp
335	current_val = page.formfactorbox.GetLabel()
336	#if page.plugin_rbutton.GetValue():
337	mod_cat = page.categorybox.GetStringSelection()
338	if mod_cat == custom_model:
339	#pos = page.formfactorbox.GetSelection()
340	page._show_combox_helper()
341	new_val = page.formfactorbox.GetLabel()
342	if current_val != new_val and new_val != '':
343	page.formfactorbox.SetLabel(new_val)
344	else:
345	page.formfactorbox.SetLabel(current_val)
346	except:
347	pass
348
349
350	def set_edit_menu(self, owner):
351	"""
352	Set list of the edit model menu labels
353	"""
354	id = wx.NewId()
355	#new_model_menu = wx.Menu()
356	self.edit_model_menu.Append(id, 'New',
357	'Add a new model function')
358	wx.EVT_MENU(owner, id, self.make_new_model)
359	id = wx.NewId()
360	self.edit_model_menu.Append(id, 'Sum\|Multi(p1, p2)',
361	'Sum of two model functions')
362	wx.EVT_MENU(owner, id, self.make_sum_model)
363	e_id = wx.NewId()
364	self.edit_menu = wx.Menu()
365	self.edit_model_menu.AppendMenu(e_id,
366	'Advanced', self.edit_menu)
367	self.set_edit_menu_helper(owner, self.edit_custom_model)
368
369	d_id = wx.NewId()
370	self.delete_menu = wx.Menu()
371	self.edit_model_menu.AppendMenu(d_id,
372	'Delete', self.delete_menu)
373	self.set_edit_menu_helper(owner, self.delete_custom_model)
374
375	def set_edit_menu_helper(self, owner=None, menu=None):
376	"""
377	help for setting list of the edit model menu labels
378	"""
379	if menu == None:
380	menu = self.edit_custom_model
381	list_fnames = os.listdir(models.find_plugins_dir())
382	list_fnames.sort()
383	for f_item in list_fnames:
384	name = os.path.basename(f_item)
385	toks = os.path.splitext(name)
386	if toks[-1] == '.py' and not toks[0] == '__init__':
387	if menu == self.edit_custom_model:
388	if toks[0] == 'easy_sum_of_p1_p2':
389	continue
390	submenu = self.edit_menu
391	else:
392	submenu = self.delete_menu
393	has_file = False
394	for item in submenu.GetMenuItems():
395	if name == submenu.GetLabel(item.GetId()):
396	has_file = True
397	if not has_file:
398	id = wx.NewId()
399	submenu.Append(id, name)
400	wx.EVT_MENU(owner, id, menu)
401	has_file = False
402
403	def put_icon(self, frame):
404	"""
405	Put icon in the frame title bar
406	"""
407	if hasattr(frame, "IsIconized"):
408	if not frame.IsIconized():
409	try:
410	icon = self.parent.GetIcon()
411	frame.SetIcon(icon)
412	except:
413	pass
414
415	def on_add_sim_page(self, event):
416	"""
417	Create a page to access simultaneous fit option
418	"""
419	id = event.GetId()
420	caption = "Const & Simul Fit"
421	page = self.sim_page
422	if id == self.id_batchfit:
423	caption = "Combined Batch"
424	page = self.batch_page
425
426	def set_focus_page(page):
427	page.Show(True)
428	page.Refresh()
429	page.SetFocus()
430	#self.parent._mgr.Update()
431	msg = "%s already opened\n" % str(page.window_caption)
432	wx.PostEvent(self.parent, StatusEvent(status=msg))
433
434	if page != None:
435	return set_focus_page(page)
436	if caption == "Const & Simul Fit":
437	self.sim_page = self.fit_panel.add_sim_page(caption=caption)
438	else:
439	self.batch_page = self.fit_panel.add_sim_page(caption=caption)
440
441	def help(self, evt):
442	"""
443	Show a general help dialog.
444	"""
445	from help_panel import HelpWindow
446	frame = HelpWindow(None, -1, 'HelpWindow')
447	if hasattr(frame, "IsIconized"):
448	if not frame.IsIconized():
449	try:
450	icon = self.parent.GetIcon()
451	frame.SetIcon(icon)
452	except:
453	pass
454	frame.Show(True)
455
456	def get_context_menu(self, plotpanel=None):
457	"""
458	Get the context menu items available for P(r).them allow fitting option
459	for Data2D and Data1D only.
460
461	:param graph: the Graph object to which we attach the context menu
462
463	:return: a list of menu items with call-back function
464
465	:note: if Data1D was generated from Theory1D
466	the fitting option is not allowed
467
468	"""
469	self.plot_panel = plotpanel
470	graph = plotpanel.graph
471	fit_option = "Select data for fitting"
472	fit_hint = "Dialog with fitting parameters "
473
474	if graph.selected_plottable not in plotpanel.plots:
475	return []
476	item = plotpanel.plots[graph.selected_plottable]
477	if item.__class__.__name__ is "Data2D":
478	if hasattr(item, "is_data"):
479	if item.is_data:
480	return [[fit_option, fit_hint, self._onSelect]]
481	else:
482	return []
483	return [[fit_option, fit_hint, self._onSelect]]
484	else:
485
486	# if is_data is true , this in an actual data loaded
487	#else it is a data created from a theory model
488	if hasattr(item, "is_data"):
489	if item.is_data:
490	return [[fit_option, fit_hint, self._onSelect]]
491	else:
492	return []
493	return [[fit_option, fit_hint, self._onSelect]]
494	return []
495
496	def get_panels(self, parent):
497	"""
498	Create and return a list of panel objects
499	"""
500	self.parent = parent
501	#self.parent.Bind(EVT_FITSTATE_UPDATE, self.on_set_state_helper)
502	# Creation of the fit panel
503	self.frame = MDIFrame(self.parent, None, 'None', (100, 200))
504	self.fit_panel = FitPanel(parent=self.frame, manager=self)
505	self.frame.set_panel(self.fit_panel)
506	self._frame_set_helper()
507	self.on_add_new_page(event=None)
508	#Set the manager for the main panel
509	self.fit_panel.set_manager(self)
510	# List of windows used for the perspective
511	self.perspective = []
512	self.perspective.append(self.fit_panel.window_name)
513
514	#index number to create random model name
515	self.index_model = 0
516	self.index_theory = 0
517	self.parent.Bind(EVT_SLICER_PANEL, self._on_slicer_event)
518	self.parent.Bind(EVT_SLICER_PARS_UPDATE, self._onEVT_SLICER_PANEL)
519	#self.parent._mgr.Bind(wx.aui.EVT_AUI_PANE_CLOSE,self._onclearslicer)
520	#Create reader when fitting panel are created
521	self.state_reader = Reader(self.set_state)
522	#append that reader to list of available reader
523	loader = Loader()
524	loader.associate_file_reader(".fitv", self.state_reader)
525	#Send the fitting panel to guiframe
526	self.mypanels.append(self.fit_panel)
527	return self.mypanels
528
529	def clear_panel(self):
530	"""
531	"""
532	self.fit_panel.clear_panel()
533
534	def set_default_perspective(self):
535	"""
536	Call back method that True to notify the parent that the current plug-in
537	can be set as default perspective.
538	when returning False, the plug-in is not candidate for an automatic
539	default perspective setting
540	"""
541	return True
542
543	def delete_data(self, data):
544	"""
545	delete the given data from panel
546	"""
547	self.fit_panel.delete_data(data)
548
549	def set_data(self, data_list=None):
550	"""
551	receive a list of data to fit
552	"""
553	if data_list is None:
554	data_list = []
555	selected_data_list = []
556	if self.batch_on:
557	page = self.add_fit_page(data=data_list)
558	else:
559	if len(data_list) > MAX_NBR_DATA:
560	from fitting_widgets import DataDialog
561	dlg = DataDialog(data_list=data_list, nb_data=MAX_NBR_DATA)
562	if dlg.ShowModal() == wx.ID_OK:
563	selected_data_list = dlg.get_data()
564	dlg.Destroy()
565
566	else:
567	selected_data_list = data_list
568	try:
569	group_id = wx.NewId()
570	for data in selected_data_list:
571	if data is not None:
572	# 2D has no same group_id
573	if data.__class__.__name__ == 'Data2D':
574	group_id = wx.NewId()
575	data.group_id = group_id
576	if group_id not in data.list_group_id:
577	data.list_group_id.append(group_id)
578	page = self.add_fit_page(data=[data])
579	except:
580	msg = "Fitting Set_data: " + str(sys.exc_value)
581	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error"))
582
583	def set_theory(self, theory_list=None):
584	"""
585	"""
586	#set the model state for a given theory_state:
587	for item in theory_list:
588	try:
589	_, theory_state = item
590	self.fit_panel.set_model_state(theory_state)
591	except:
592	msg = "Fitting: cannot deal with the theory received"
593	logging.error("set_theory " + msg + "\n" + str(sys.exc_value))
594	wx.PostEvent(self.parent,
595	StatusEvent(status=msg, info="error"))
596
597	def set_state(self, state=None, datainfo=None, format=None):
598	"""
599	Call-back method for the fit page state reader.
600	This method is called when a .fitv/.svs file is loaded.
601
602	: param state: PageState object
603	: param datainfo: data
604	"""
605	#state = self.state_reader.get_state()
606	if state != None:
607	state = state.clone()
608	# store fitting state in temp_state
609	self.temp_state.append(state)
610	else:
611	self.temp_state = []
612	# index to start with for a new set_state
613	self.state_index = 0
614	# state file format
615	self.sfile_ext = format
616
617	self.on_set_state_helper(event=None)
618
619	def on_set_state_helper(self, event=None):
620	"""
621	Set_state_helper. This actually sets state
622	after plotting data from state file.
623
624	: event: FitStateUpdateEvent called
625	by dataloader.plot_data from guiframe
626	"""
627	if len(self.temp_state) == 0:
628	if self.state_index == 0 and len(self.mypanels) <= 0 \
629	and self.sfile_ext == '.svs':
630	self.temp_state = []
631	self.state_index = 0
632	return
633
634	try:
635	# Load fitting state
636	state = self.temp_state[self.state_index]
637	#panel state should have model selection to set_state
638	if state.formfactorcombobox != None:
639	#set state
640	data = self.parent.create_gui_data(state.data)
641	data.group_id = state.data.group_id
642	self.parent.add_data(data_list={data.id: data})
643	wx.PostEvent(self.parent, NewPlotEvent(plot=data,
644	title=data.title))
645	#need to be fix later make sure we are sendind guiframe.data
646	#to panel
647	state.data = data
648	page = self.fit_panel.set_state(state)
649	else:
650	#just set data because set_state won't work
651	data = self.parent.create_gui_data(state.data)
652	data.group_id = state.data.group_id
653	self.parent.add_data(data_list={data.id: data})
654	wx.PostEvent(self.parent, NewPlotEvent(plot=data,
655	title=data.title))
656	page = self.add_fit_page([data])
657	caption = page.window_caption
658	self.store_data(uid=page.uid, data_list=page.get_data_list(),
659	caption=caption)
660	self.mypanels.append(page)
661
662	# get ready for the next set_state
663	self.state_index += 1
664
665	#reset state variables to default when all set_state is finished.
666	if len(self.temp_state) == self.state_index:
667
668	self.temp_state = []
669	#self.state_index = 0
670	# Make sure the user sees the fitting panel after loading
671	#self.parent.set_perspective(self.perspective)
672	self.on_perspective(event=None)
673	except:
674	self.state_index = 0
675	self.temp_state = []
676	raise
677
678	def set_param2fit(self, uid, param2fit):
679	"""
680	Set the list of param names to fit for fitprobelm
681	"""
682	self.page_finder[uid].set_param2fit(param2fit)
683
684	def set_graph_id(self, uid, graph_id):
685	"""
686	Set graph_id for fitprobelm
687	"""
688	self.page_finder[uid].set_graph_id(graph_id)
689
690	def get_graph_id(self, uid):
691	"""
692	Set graph_id for fitprobelm
693	"""
694	return self.page_finder[uid].get_graph_id()
695
696	def save_fit_state(self, filepath, fitstate):
697	"""
698	save fit page state into file
699	"""
700	self.state_reader.write(filename=filepath, fitstate=fitstate)
701
702	def set_fit_weight(self, uid, flag, is2d=False, fid=None):
703	"""
704	Set the fit weights of a given page for all
705	its data by default. If fid is provide then set the range
706	only for the data with fid as id
707	:param uid: id corresponding to a fit page
708	:param fid: id corresponding to a fit problem (data, model)
709	:param weight: current dy data
710	"""
711	if uid in self.page_finder.keys():
712	self.page_finder[uid].set_weight(flag=flag, is2d=is2d)
713
714	def set_fit_range(self, uid, qmin, qmax, fid=None):
715	"""
716	Set the fitting range of a given page for all
717	its data by default. If fid is provide then set the range
718	only for the data with fid as id
719	:param uid: id corresponding to a fit page
720	:param fid: id corresponding to a fit problem (data, model)
721	:param qmin: minimum value of the fit range
722	:param qmax: maximum value of the fit range
723	"""
724	if uid in self.page_finder.keys():
725	self.page_finder[uid].set_range(qmin=qmin, qmax=qmax, fid=fid)
726
727	def schedule_for_fit(self, value=0, uid=None):
728	"""
729	Set the fit problem field to 0 or 1 to schedule that problem to fit.
730	Schedule the specified fitproblem or get the fit problem related to
731	the current page and set value.
732	:param value: integer 0 or 1
733	:param uid: the id related to a page contaning fitting information
734	"""
735	if uid in self.page_finder.keys():
736	self.page_finder[uid].schedule_tofit(value)
737
738	def get_page_finder(self):
739	"""
740	return self.page_finder used also by simfitpage.py
741	"""
742	return self.page_finder
743
744	def set_page_finder(self, modelname, names, values):
745	"""
746	Used by simfitpage.py to reset a parameter given the string constrainst.
747
748	:param modelname: the name ot the model for with the parameter
749	has to reset
750	:param value: can be a string in this case.
751	:param names: the paramter name
752
753	:note: expecting park used for fit.
754
755	"""
756	sim_page_id = self.sim_page.uid
757	for uid, value in self.page_finder.iteritems():
758	if uid != sim_page_id and uid != self.batch_page.uid:
759	list = value.get_model()
760	model = list[0]
761	if model.name == modelname:
762	value.set_model_param(names, values)
763	break
764
765	def split_string(self, item):
766	"""
767	receive a word containing dot and split it. used to split parameterset
768	name into model name and parameter name example: ::
769
770	paramaterset (item) = M1.A
771	Will return model_name = M1 , parameter name = A
772
773	"""
774	if item.find(".") >= 0:
775	param_names = re.split("\.", item)
776	model_name = param_names[0]
777	##Assume max len is 3; eg., M0.radius.width
778	if len(param_names) == 3:
779	param_name = param_names[1] + "." + param_names[2]
780	else:
781	param_name = param_names[1]
782	return model_name, param_name
783
784	def set_ftol(self, ftol=None):
785	"""
786	Set ftol: Relative error desired in the sum of chi squares.
787	"""
788	# check if it is flaot
789	try:
790	f_tol = float(ftol)
791	except:
792	# default
793	f_tol = SANS_F_TOL
794
795	self.ftol = f_tol
796	# update ftol menu help strings
797	ftol_help = "Change the current FTolerance (=%s) " % str(self.ftol)
798	ftol_help += "of Simple FitEngine..."
799	if self.menu1 != None:
800	self.menu1.SetHelpString(self.id_tol, ftol_help)
801
802	def show_ftol_dialog(self, event=None):
803	"""
804	Dialog to select ftol for Scipy
805	"""
806	from ftol_dialog import ChangeFtol
807	dialog = ChangeFtol(self.parent, self)
808	result = dialog.ShowModal()
809	if result == wx.ID_OK:
810	value = dialog.get_ftol()
811	if value is not None:
812	self.set_ftol(value)
813	msg = "The ftol (LeastSq) is set to %s." % value
814	else:
815	msg = "Error in the selection... No change in ftol."
816	# post event for info
817	wx.PostEvent(self.parent,
818	StatusEvent(status=msg, info='warning'))
819	dialog.Destroy()
820
821	def stop_fit(self, uid):
822	"""
823	Stop the fit engine
824	"""
825	if uid in self.fit_thread_list.keys():
826	calc_fit = self.fit_thread_list[uid]
827	if calc_fit is not None and calc_fit.isrunning():
828	calc_fit.stop()
829	msg = "Fit stop!"
830	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
831	del self.fit_thread_list[uid]
832	#set the fit button label of page when fit stop is trigger from
833	#simultaneous fit pane
834	sim_flag = self.sim_page is not None and uid == self.sim_page.uid
835	batch_flag = self.batch_page is not None and uid == self.batch_page.uid
836	if sim_flag or batch_flag:
837	for uid, value in self.page_finder.iteritems():
838	if value.get_scheduled() == 1:
839	if uid in self.fit_panel.opened_pages.keys():
840	panel = self.fit_panel.opened_pages[uid]
841	panel._on_fit_complete()
842
843	def set_smearer(self, uid, smearer, fid, qmin=None, qmax=None, draw=True,
844	enable_smearer=False):
845	"""
846	Get a smear object and store it to a fit problem of fid as id. If proper
847	flag is enable , will plot the theory with smearing information.
848
849	:param smearer: smear object to allow smearing data of id fid
850	:param enable_smearer: Define whether or not all (data, model) contained
851	in the structure of id uid will be smeared before fitting.
852	:param qmin: the maximum value of the theory plotting range
853	:param qmax: the maximum value of the theory plotting range
854	:param draw: Determine if the theory needs to be plot
855	"""
856	if uid not in self.page_finder.keys():
857	return
858	self.page_finder[uid].enable_smearing(flag=enable_smearer)
859	self.page_finder[uid].set_smearer(smearer, fid=fid)
860	if draw:
861	## draw model 1D with smeared data
862	data = self.page_finder[uid].get_fit_data(fid=fid)
863	if data is None:
864	msg = "set_mearer requires at least data.\n"
865	msg += "Got data = %s .\n" % str(data)
866	return
867	#raise ValueError, msg
868	model = self.page_finder[uid].get_model(fid=fid)
869	if model is None:
870	return
871	enable1D = issubclass(data.__class__, Data1D)
872	enable2D = issubclass(data.__class__, Data2D)
873	## if user has already selected a model to plot
874	## redraw the model with data smeared
875	smear = self.page_finder[uid].get_smearer(fid=fid)
876
877	# compute weight for the current data
878	weight = self.page_finder[uid].get_weight(fid=fid)
879
880	self.draw_model(model=model, data=data, page_id=uid, smearer=smear,
881	enable1D=enable1D, enable2D=enable2D,
882	qmin=qmin, qmax=qmax, weight=weight)
883	self._mac_sleep(0.2)
884
885	def _mac_sleep(self, sec=0.2):
886	"""
887	Give sleep to MAC
888	"""
889	if ON_MAC:
890	time.sleep(sec)
891
892	def draw_model(self, model, page_id, data=None, smearer=None,
893	enable1D=True, enable2D=False,
894	state=None,
895	fid=None,
896	toggle_mode_on=False,
897	qmin=None, qmax=None,
898	update_chisqr=True, weight=None, source='model'):
899	"""
900	Draw model.
901
902	:param model: the model to draw
903	:param name: the name of the model to draw
904	:param data: the data on which the model is based to be drawn
905	:param description: model's description
906	:param enable1D: if true enable drawing model 1D
907	:param enable2D: if true enable drawing model 2D
908	:param qmin: Range's minimum value to draw model
909	:param qmax: Range's maximum value to draw model
910	:param qstep: number of step to divide the x and y-axis
911	:param update_chisqr: update chisqr [bool]
912
913	"""
914	#self.weight = weight
915	if issubclass(data.__class__, Data1D) or not enable2D:
916	## draw model 1D with no loaded data
917	self._draw_model1D(model=model,
918	data=data,
919	page_id=page_id,
920	enable1D=enable1D,
921	smearer=smearer,
922	qmin=qmin,
923	qmax=qmax,
924	fid=fid,
925	weight=weight,
926	toggle_mode_on=toggle_mode_on,
927	state=state,
928	update_chisqr=update_chisqr,
929	source=source)
930	else:
931	## draw model 2D with no initial data
932	self._draw_model2D(model=model,
933	page_id=page_id,
934	data=data,
935	enable2D=enable2D,
936	smearer=smearer,
937	qmin=qmin,
938	qmax=qmax,
939	fid=fid,
940	weight=weight,
941	state=state,
942	toggle_mode_on=toggle_mode_on,
943	update_chisqr=update_chisqr,
944	source=source)
945
946	def onFit(self, uid):
947	"""
948	Get series of data, model, associates parameters and range and send then
949	to series of fit engines. Fit data and model, display result to
950	corresponding panels.
951	:param uid: id related to the panel currently calling this fit function.
952	"""
953	flag = True
954	## count the number of fitproblem schedule to fit
955	fitproblem_count = 0
956	for value in self.page_finder.values():
957	if value.get_scheduled() == 1:
958	fitproblem_count += 1
959	self._gui_engine = self._return_engine_type()
960	self.fitproblem_count = fitproblem_count
961	if self._fit_engine == "park":
962	engineType = "Simultaneous Fit"
963	else:
964	engineType = "Single Fit"
965	fitter_list = []
966	sim_fitter = None
967	is_single_fit = True
968	batch_on = False
969	if self.sim_page is not None and self.sim_page.uid == uid:
970	#simulatanous fit only one engine need to be created
971	## if simultaneous fit change automatically the engine to park
972	self._on_change_engine(engine='park')
973	sim_fitter = Fit(self._fit_engine)
974	sim_fitter.fitter_id = self.sim_page.uid
975	fitter_list.append(sim_fitter)
976	is_single_fit = False
977	batch_on = self.sim_page.batch_on
978
979	self.fitproblem_count = fitproblem_count
980	if self._fit_engine == "park":
981	engineType = "Simultaneous Fit"
982	else:
983	engineType = "Single Fit"
984
985	self.current_pg = None
986	list_page_id = []
987	fit_id = 0
988	batch_inputs = {}
989	batch_outputs = {}
990	for page_id, value in self.page_finder.iteritems():
991	# For simulfit (uid give with None), do for-loop
992	# if uid is specified (singlefit), do it only on the page.
993	if engineType == "Single Fit":
994	#combine more than 1 batch page on single mode
995	if self.batch_page is None or self.batch_page.uid != uid:
996	if page_id != uid:
997	continue
998	try:
999	if value.get_scheduled() == 1:
1000	value.nbr_residuals_computed = 0
1001	#Get list of parameters name to fit
1002	pars = []
1003	templist = []
1004	page = self.fit_panel.get_page_by_id(page_id)
1005	self.set_fit_weight(uid=page.uid,
1006	flag=page.get_weight_flag(),
1007	is2d=page._is_2D())
1008	templist = page.get_param_list()
1009	flag = page._update_paramv_on_fit()
1010	if not flag:
1011	msg = "Fitting range or parameter values are"
1012	msg += " invalid in %s" % \
1013	page.window_caption
1014	wx.PostEvent(page.parent.parent,
1015	StatusEvent(status=msg, info="error",
1016	type="stop"))
1017	return flag
1018	for element in templist:
1019	name = str(element[1])
1020	pars.append(name)
1021	fitproblem_list = value.values()
1022	for fitproblem in fitproblem_list:
1023	if sim_fitter is None:
1024	fitter = Fit(self._fit_engine)
1025	fitter.fitter_id = page_id
1026	self._fit_helper(fitproblem=fitproblem,
1027	pars=pars,
1028	fitter=fitter,
1029	fit_id=fit_id,
1030	batch_inputs=batch_inputs,
1031	batch_outputs=batch_outputs)
1032	fitter_list.append(fitter)
1033	else:
1034	fitter = sim_fitter
1035	self._fit_helper(fitproblem=fitproblem,
1036	pars=pars,
1037	fitter=fitter,
1038	fit_id=fit_id,
1039	batch_inputs=batch_inputs,
1040	batch_outputs=batch_outputs)
1041	fit_id += 1
1042	list_page_id.append(page_id)
1043	current_page_id = page_id
1044	value.clear_model_param()
1045	except KeyboardInterrupt:
1046	flag = True
1047	msg = "Fitting terminated"
1048	wx.PostEvent(self.parent, StatusEvent(status=msg, info="info",
1049	type="stop"))
1050	return flag
1051	except:
1052	flag = False
1053	msg = "%s error: %s" % (engineType, sys.exc_value)
1054	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
1055	type="stop"))
1056	return flag
1057	## If a thread is already started, stop it
1058	#if self.calc_fit!= None and self.calc_fit.isrunning():
1059	# self.calc_fit.stop()
1060	msg = "Fitting is in progress..."
1061	wx.PostEvent(self.parent, StatusEvent(status=msg, type="progress"))
1062
1063	#Handler used for park engine displayed message
1064	handler = ConsoleUpdate(parent=self.parent,
1065	manager=self,
1066	improvement_delta=0.1)
1067	self._mac_sleep(0.2)
1068	## perform single fit
1069	try:
1070	page = self.fit_panel.get_page_by_id(uid)
1071	batch_on = page.batch_on
1072	except:
1073	try:
1074	#if the id cannot be found then we deal with a self.sim_page
1075	#or a self.batch_page
1076	if self.sim_page is not None and uid == self.sim_page.uid:
1077	batch_on = self.sim_page.batch_on
1078	if self.batch_page is not None and uid == self.batch_page.uid:
1079	batch_on = self.batch_page.batch_on
1080	except:
1081	batch_on = False
1082
1083	# batch fit
1084	if batch_on:
1085	calc_fit = FitThread(handler=handler,
1086	fn=fitter_list,
1087	pars=pars,
1088	batch_inputs=batch_inputs,
1089	batch_outputs=batch_outputs,
1090	page_id=list_page_id,
1091	completefn=self._batch_fit_complete,
1092	ftol=self.ftol,
1093	reset_flag=self.batch_reset_flag)
1094	else:
1095	# single fit: not batch and not simul fit
1096	if not is_single_fit:
1097	current_page_id = self.sim_page.uid
1098	## Perform more than 1 fit at the time
1099	calc_fit = FitThread(handler=handler,
1100	fn=fitter_list,
1101	batch_inputs=batch_inputs,
1102	batch_outputs=batch_outputs,
1103	page_id=list_page_id,
1104	updatefn=handler.update_fit,
1105	completefn=self._fit_completed,
1106	ftol=self.ftol)
1107	self.fit_thread_list[current_page_id] = calc_fit
1108	calc_fit.queue()
1109	msg = "Fitting is in progress..."
1110	wx.PostEvent(self.parent, StatusEvent(status=msg, type="progress"))
1111
1112	self.ready_fit(calc_fit=calc_fit)
1113	return flag
1114
1115	def ready_fit(self, calc_fit):
1116	"""
1117	Ready for another fit
1118	"""
1119	if self.fitproblem_count != None and self.fitproblem_count > 1:
1120	calc_fit.ready(2.5)
1121	else:
1122	time.sleep(0.4)
1123
1124	def remove_plot(self, uid, fid=None, theory=False):
1125	"""
1126	remove model plot when a fit page is closed
1127	:param uid: the id related to the fitpage to close
1128	:param fid: the id of the fitproblem(data, model, range,etc)
1129	"""
1130	if uid not in self.page_finder.keys():
1131	return
1132	fitproblemList = self.page_finder[uid].get_fit_problem(fid)
1133	for fitproblem in fitproblemList:
1134	data = fitproblem.get_fit_data()
1135	model = fitproblem.get_model()
1136	plot_id = None
1137	if model is not None:
1138	plot_id = data.id + model.name
1139	if theory:
1140	plot_id = data.id + model.name
1141	group_id = data.group_id
1142	wx.PostEvent(self.parent, NewPlotEvent(id=plot_id,
1143	group_id=group_id,
1144	action='remove'))
1145
1146	def store_data(self, uid, data_list=None, caption=None):
1147	"""
1148	Recieve a list of data and store them ans well as a caption of
1149	the fit page where they come from.
1150	:param uid: if related to a fit page
1151	:param data_list: list of data to fit
1152	:param caption: caption of the window related to these data
1153	"""
1154	if data_list is None:
1155	data_list = []
1156
1157	self.page_finder[uid].set_fit_data(data=data_list)
1158	if caption is not None:
1159	self.page_finder[uid].set_fit_tab_caption(caption=caption)
1160
1161	def on_add_new_page(self, event=None):
1162	"""
1163	ask fit panel to create a new empty page
1164	"""
1165	try:
1166	page = self.fit_panel.add_empty_page()
1167	# add data associated to the page created
1168	if page != None:
1169	wx.PostEvent(self.parent, StatusEvent(status="Page Created",
1170	info="info"))
1171	else:
1172	msg = "Page was already Created"
1173	wx.PostEvent(self.parent, StatusEvent(status=msg,
1174	info="warning"))
1175	except:
1176	msg = "Creating Fit page: %s"%sys.exc_value
1177	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error"))
1178
1179	def add_fit_page(self, data):
1180	"""
1181	given a data, ask to the fitting panel to create a new fitting page,
1182	get this page and store it into the page_finder of this plug-in
1183	:param data: is a list of data
1184	"""
1185	page = self.fit_panel.set_data(data)
1186	# page could be None when loading state files
1187	if page == None:
1188	return page
1189	#append Data1D to the panel containing its theory
1190	#if theory already plotted
1191	if page.uid in self.page_finder:
1192	data = page.get_data()
1193	theory_data = self.page_finder[page.uid].get_theory_data(data.id)
1194	if issubclass(data.__class__, Data2D):
1195	data.group_id = wx.NewId()
1196	if theory_data is not None:
1197	group_id = str(page.uid) + " Model1D"
1198	wx.PostEvent(self.parent,
1199	NewPlotEvent(group_id=group_id,
1200	action="delete"))
1201	self.parent.update_data(prev_data=theory_data,
1202	new_data=data)
1203	else:
1204	if theory_data is not None:
1205	group_id = str(page.uid) + " Model2D"
1206	data.group_id = theory_data.group_id
1207	wx.PostEvent(self.parent,
1208	NewPlotEvent(group_id=group_id,
1209	action="delete"))
1210	self.parent.update_data(prev_data=theory_data,
1211	new_data=data)
1212	self.store_data(uid=page.uid, data_list=page.get_data_list(),
1213	caption=page.window_caption)
1214	if self.sim_page is not None and not self.batch_on:
1215	self.sim_page.draw_page()
1216	if self.batch_page is not None and self.batch_on:
1217	self.batch_page.draw_page()
1218
1219	return page
1220
1221	def _onEVT_SLICER_PANEL(self, event):
1222	"""
1223	receive and event telling to update a panel with a name starting with
1224	event.panel_name. this method update slicer panel
1225	for a given interactor.
1226
1227	:param event: contains type of slicer , paramaters for updating
1228	the panel and panel_name to find the slicer 's panel concerned.
1229	"""
1230	event.panel_name
1231	for item in self.parent.panels:
1232	name = event.panel_name
1233	if self.parent.panels[item].window_caption.startswith(name):
1234	self.parent.panels[item].set_slicer(event.type, event.params)
1235
1236	#self.parent._mgr.Update()
1237
1238	def _closed_fitpage(self, event):
1239	"""
1240	request fitpanel to close a given page when its unique data is removed
1241	from the plot. close fitpage only when the a loaded data is removed
1242	"""
1243	if event is None or event.data is None:
1244	return
1245	if hasattr(event.data, "is_data"):
1246	if not event.data.is_data or \
1247	event.data.__class__.__name__ == "Data1D":
1248	self.fit_panel.close_page_with_data(event.data)
1249
1250	def _reset_schedule_problem(self, value=0, uid=None):
1251	"""
1252	unschedule or schedule all fitproblem to be fit
1253	"""
1254	# case that uid is not specified
1255	if uid == None:
1256	for page_id in self.page_finder.keys():
1257	self.page_finder[page_id].schedule_tofit(value)
1258	# when uid is given
1259	else:
1260	if uid in self.page_finder.keys():
1261	self.page_finder[uid].schedule_tofit(value)
1262
1263	def _fit_helper(self, fitproblem, pars, fitter, fit_id,
1264	batch_inputs, batch_outputs):
1265	"""
1266	Create and set fit engine with series of data and model
1267	:param pars: list of fittable parameters
1268	:param fitter_list: list of fit engine
1269	:param value: structure storing data mapped to their model, range etc.
1270	"""
1271	data = fitproblem.get_fit_data()
1272	model = fitproblem.get_model()
1273	smearer = fitproblem.get_smearer()
1274	qmin, qmax = fitproblem.get_range()
1275
1276	#Extra list of parameters and their constraints
1277	listOfConstraint = []
1278	param = fitproblem.get_model_param()
1279	if len(param) > 0:
1280	for item in param:
1281	## check if constraint
1282	if item[0] != None and item[1] != None:
1283	listOfConstraint.append((item[0], item[1]))
1284	new_model = model
1285	fitter.set_model(new_model, fit_id, pars, data=data,
1286	constraints=listOfConstraint)
1287	fitter.set_data(data=data, id=fit_id, smearer=smearer, qmin=qmin,
1288	qmax=qmax)
1289	fitter.select_problem_for_fit(id=fit_id, value=1)
1290
1291	def _onSelect(self, event):
1292	"""
1293	when Select data to fit a new page is created .Its reference is
1294	added to self.page_finder
1295	"""
1296	panel = self.plot_panel
1297	if panel == None:
1298	raise ValueError, "Fitting:_onSelect: NonType panel"
1299	Plugin.on_perspective(self, event=event)
1300	self.select_data(panel)
1301
1302	def select_data(self, panel):
1303	"""
1304	"""
1305	for plottable in panel.graph.plottables:
1306	if plottable.__class__.__name__ in ["Data1D", "Theory1D"]:
1307	data_id = panel.graph.selected_plottable
1308	if plottable == panel.plots[data_id]:
1309	data = plottable
1310	self.add_fit_page(data=[data])
1311	return
1312	else:
1313	data = plottable
1314	self.add_fit_page(data=[data])
1315
1316	def update_fit(self, result=None, msg=""):
1317	"""
1318	"""
1319	print "update_fit result", result
1320
1321	def _batch_fit_complete(self, result, pars, page_id,
1322	batch_outputs, batch_inputs, elapsed=None):
1323	"""
1324	Display fit result in batch
1325	:param result: list of objects received fromt fit engines
1326	:param pars: list of fitted parameters names
1327	:param page_id: list of page ids which called fit function
1328	:param elapsed: time spent at the fitting level
1329	"""
1330	self._mac_sleep(0.2)
1331	uid = page_id[0]
1332	if uid in self.fit_thread_list.keys():
1333	del self.fit_thread_list[uid]
1334
1335	self._update_fit_button(page_id)
1336	t1 = time.time()
1337	str_time = time.strftime("%a, %d %b %Y %H:%M:%S ", time.localtime(t1))
1338	msg = "Fit completed on %s \n" % str_time
1339	msg += "Duration time: %s s.\n" % str(elapsed)
1340	wx.PostEvent(self.parent, StatusEvent(status=msg, info="info",
1341	type="stop"))
1342
1343	if batch_outputs is None:
1344	batch_outputs = {}
1345
1346	# format batch_outputs
1347	batch_outputs["Chi2"] = []
1348	#Don't like these loops
1349	# Need to create dictionary of all fitted parameters
1350	# since the number of parameters can differ between each fit result
1351	for list_res in result:
1352	for res in list_res:
1353	model, data = res.inputs[0]
1354	if model is not None and hasattr(model, "model"):
1355	model = model.model
1356	#get all fittable parameters of the current model
1357	for param in model.getParamList():
1358	if param not in batch_outputs.keys():
1359	batch_outputs[param] = []
1360	for param in model.getDispParamList():
1361	if not model.is_fittable(param) and \
1362	param in batch_outputs.keys():
1363	del batch_outputs[param]
1364	# Add fitted parameters and their error
1365	for param in res.param_list:
1366	if param not in batch_outputs.keys():
1367	batch_outputs[param] = []
1368	err_param = "error on %s" % str(param)
1369	if err_param not in batch_inputs.keys():
1370	batch_inputs[err_param] = []
1371	msg = ""
1372	for list_res in result:
1373	for res in list_res:
1374	pid = res.fitter_id
1375	model, data = res.inputs[0]
1376	correct_result = False
1377	if model is not None and hasattr(model, "model"):
1378	model = model.model
1379	if data is not None and hasattr(data, "sans_data"):
1380	data = data.sans_data
1381
1382	is_data2d = issubclass(data.__class__, Data2D)
1383	#check consistency of arrays
1384	if not is_data2d:
1385	if len(res.theory) == len(res.index[res.index]) and \
1386	len(res.index) == len(data.y):
1387	correct_result = True
1388	else:
1389	copy_data = deepcopy(data)
1390	new_theory = copy_data.data
1391	new_theory[res.index] = res.theory
1392	new_theory[res.index == False] = numpy.nan
1393	correct_result = True
1394	#get all fittable parameters of the current model
1395	param_list = model.getParamList()
1396	for param in model.getDispParamList():
1397	if not model.is_fittable(param) and \
1398	param in param_list:
1399	param_list.remove(param)
1400	if not correct_result or res.fitness is None or \
1401	not numpy.isfinite(res.fitness) or \
1402	numpy.any(res.pvec == None) or not \
1403	numpy.all(numpy.isfinite(res.pvec)):
1404	data_name = str(None)
1405	if data is not None:
1406	data_name = str(data.name)
1407	model_name = str(None)
1408	if model is not None:
1409	model_name = str(model.name)
1410	msg += "Data %s and Model %s did not fit.\n" % (data_name,
1411	model_name)
1412	ERROR = numpy.NAN
1413	cell = BatchCell()
1414	cell.label = res.fitness
1415	cell.value = res.fitness
1416	batch_outputs["Chi2"].append(ERROR)
1417	for param in param_list:
1418	# save value of fixed parameters
1419	if param not in res.param_list:
1420	batch_outputs[str(param)].append(ERROR)
1421	else:
1422	#save only fitted values
1423	batch_outputs[param].append(ERROR)
1424	batch_inputs["error on %s" % str(param)].append(ERROR)
1425	else:
1426	# ToDo: Why sometimes res.pvec comes with numpy.float64?
1427	# Need to fix it within ScipyEngine
1428	if res.pvec.__class__ == numpy.float64:
1429	res.pvec = [res.pvec]
1430
1431	cell = BatchCell()
1432	cell.label = res.fitness
1433	cell.value = res.fitness
1434	batch_outputs["Chi2"].append(cell)
1435	# add parameters to batch_results
1436	for param in param_list:
1437	# save value of fixed parameters
1438	if param not in res.param_list:
1439	batch_outputs[str(param)].append(model.getParam(param))
1440	else:
1441	index = res.param_list.index(param)
1442	#save only fitted values
1443	batch_outputs[param].append(res.pvec[index])
1444	if res.stderr is not None and \
1445	len(res.stderr) == len(res.param_list):
1446	item = res.stderr[index]
1447	batch_inputs["error on %s" % param].append(item)
1448	else:
1449	batch_inputs["error on %s" % param].append('-')
1450	model.setParam(param, res.pvec[index])
1451	#fill the batch result with emtpy value if not in the current
1452	#model
1453	EMPTY = "-"
1454	for key in batch_outputs.keys():
1455	if key not in param_list and key not in ["Chi2", "Data"]:
1456	batch_outputs[key].append(EMPTY)
1457
1458	self.page_finder[pid].set_batch_result(batch_inputs=batch_inputs,
1459	batch_outputs=batch_outputs)
1460
1461	cpage = self.fit_panel.get_page_by_id(pid)
1462	cpage._on_fit_complete()
1463	self.page_finder[pid][data.id].set_result(res)
1464	fitproblem = self.page_finder[pid][data.id]
1465	qmin, qmax = fitproblem.get_range()
1466	plot_result = False
1467	if correct_result:
1468	if not is_data2d:
1469	self._complete1D(x=data.x[res.index], y=res.theory, page_id=pid,
1470	elapsed=None,
1471	index=res.index, model=model,
1472	weight=None, fid=data.id,
1473	toggle_mode_on=False, state=None,
1474	data=data, update_chisqr=False,
1475	source='fit', plot_result=plot_result)
1476	else:
1477	self._complete2D(image=new_theory, data=data,
1478	model=model,
1479	page_id=pid, elapsed=None,
1480	index=res.index,
1481	qmin=qmin,
1482	qmax=qmax, fid=data.id, weight=None,
1483	toggle_mode_on=False, state=None,
1484	update_chisqr=False,
1485	source='fit', plot_result=plot_result)
1486	self.on_set_batch_result(page_id=pid,
1487	fid=data.id,
1488	batch_outputs=batch_outputs,
1489	batch_inputs=batch_inputs)
1490
1491	wx.PostEvent(self.parent, StatusEvent(status=msg, error="info",
1492	type="stop"))
1493	# Remove parameters that are not shown
1494	cpage = self.fit_panel.get_page_by_id(uid)
1495	tbatch_outputs = {}
1496	shownkeystr = cpage.get_copy_params()
1497	for key in batch_outputs.keys():
1498	if key in ["Chi2", "Data"] or shownkeystr.count(key) > 0:
1499	tbatch_outputs[key] = batch_outputs[key]
1500
1501	wx.CallAfter(self.parent.on_set_batch_result, tbatch_outputs,
1502	batch_inputs, self.sub_menu)
1503
1504	def on_set_batch_result(self, page_id, fid, batch_outputs, batch_inputs):
1505	"""
1506	"""
1507	pid = page_id
1508	if fid not in self.page_finder[pid]:
1509	return
1510	fitproblem = self.page_finder[pid][fid]
1511	index = self.page_finder[pid].nbr_residuals_computed - 1
1512	residuals = fitproblem.get_residuals()
1513	theory_data = fitproblem.get_theory_data()
1514	data = fitproblem.get_fit_data()
1515	model = fitproblem.get_model()
1516	#fill batch result information
1517	if "Data" not in batch_outputs.keys():
1518	batch_outputs["Data"] = []
1519	from sans.guiframe.data_processor import BatchCell
1520	cell = BatchCell()
1521	cell.label = data.name
1522	cell.value = index
1523
1524	if theory_data != None:
1525	#Suucessful fit
1526	theory_data.id = wx.NewId()
1527	theory_data.name = model.name + "[%s]" % str(data.name)
1528	if issubclass(theory_data.__class__, Data2D):
1529	group_id = wx.NewId()
1530	theory_data.group_id = group_id
1531	if group_id not in theory_data.list_group_id:
1532	theory_data.list_group_id.append(group_id)
1533
1534	try:
1535	# associate residuals plot
1536	if issubclass(residuals.__class__, Data2D):
1537	group_id = wx.NewId()
1538	residuals.group_id = group_id
1539	if group_id not in residuals.list_group_id:
1540	residuals.list_group_id.append(group_id)
1541	batch_outputs["Chi2"][index].object = [residuals]
1542	except:
1543	pass
1544
1545	cell.object = [data, theory_data]
1546	batch_outputs["Data"].append(cell)
1547	for key, value in data.meta_data.iteritems():
1548	if key not in batch_inputs.keys():
1549	batch_inputs[key] = []
1550	#if key.lower().strip() != "loader":
1551	batch_inputs[key].append(value)
1552	param = "temperature"
1553	if hasattr(data.sample, param):
1554	if param not in batch_inputs.keys():
1555	batch_inputs[param] = []
1556	batch_inputs[param].append(data.sample.temperature)
1557
1558	def _fit_completed(self, result, page_id, batch_outputs,
1559	batch_inputs=None, pars=None, elapsed=None):
1560	"""
1561	Display result of the fit on related panel(s).
1562	:param result: list of object generated when fit ends
1563	:param pars: list of names of parameters fitted
1564	:param page_id: list of page ids which called fit function
1565	:param elapsed: time spent at the fitting level
1566	"""
1567	t1 = time.time()
1568	str_time = time.strftime("%a, %d %b %Y %H:%M:%S ", time.localtime(t1))
1569	msg = "Fit completed on %s \n" % str_time
1570	msg += "Duration time: %s s.\n" % str(elapsed)
1571	wx.PostEvent(self.parent, StatusEvent(status=msg, info="info",
1572	type="stop"))
1573	# reset fit_engine if changed by simul_fit
1574	if self._fit_engine != self._gui_engine:
1575	self._on_change_engine(self._gui_engine)
1576	self._update_fit_button(page_id)
1577	result = result[0]
1578	self.fit_thread_list = {}
1579	if page_id is None:
1580	page_id = []
1581	## fit more than 1 model at the same time
1582	self._mac_sleep(0.2)
1583	try:
1584	index = 0
1585	for uid in page_id:
1586	res = result[index]
1587	if res.fitness is None or \
1588	not numpy.isfinite(res.fitness) or \
1589	numpy.any(res.pvec == None) or \
1590	not numpy.all(numpy.isfinite(res.pvec)):
1591	msg = "Fitting did not converge!!!"
1592	wx.PostEvent(self.parent,
1593	StatusEvent(status=msg,
1594	info="warning",
1595	type="stop"))
1596	self._update_fit_button(page_id)
1597	else:
1598	#set the panel when fit result are float not list
1599	if res.pvec.__class__ == numpy.float64:
1600	pvec = [res.pvec]
1601	else:
1602	pvec = res.pvec
1603	if res.stderr.__class__ == numpy.float64:
1604	stderr = [res.stderr]
1605	else:
1606	stderr = res.stderr
1607	cpage = self.fit_panel.get_page_by_id(uid)
1608	# Make sure we got all results
1609	#(CallAfter is important to MAC)
1610	try:
1611	#if res != None:
1612	wx.CallAfter(cpage.onsetValues, res.fitness,
1613	res.param_list,
1614	pvec, stderr)
1615	index += 1
1616	wx.CallAfter(cpage._on_fit_complete)
1617	except KeyboardInterrupt:
1618	msg = "Singular point: Fitting Stoped."
1619	wx.PostEvent(self.parent, StatusEvent(status=msg,
1620	info="info",
1621	type="stop"))
1622	except:
1623	msg = "Singular point: Fitting Error occurred."
1624	wx.PostEvent(self.parent, StatusEvent(status=msg,
1625	info="error",
1626	type="stop"))
1627
1628	except:
1629	msg = "Fit completed but Following"
1630	msg += " warning occurred: %s" % sys.exc_value
1631	wx.PostEvent(self.parent, StatusEvent(status=msg, info="warning",
1632	type="stop"))
1633
1634	def _update_fit_button(self, page_id):
1635	"""
1636	Update Fit button when fit stopped
1637
1638	: parameter page_id: fitpage where the button is
1639	"""
1640	if page_id.__class__.__name__ != 'list':
1641	page_id = [page_id]
1642	for uid in page_id:
1643	page = self.fit_panel.get_page_by_id(uid)
1644	page._on_fit_complete()
1645
1646	def _on_show_panel(self, event):
1647	"""
1648	"""
1649	pass
1650
1651	def on_reset_batch_flag(self, event):
1652	"""
1653	Set batch_reset_flag
1654	"""
1655	event.Skip()
1656	if self.menu1 == None:
1657	return
1658	menu_item = self.menu1.FindItemById(self.id_reset_flag)
1659	flag = menu_item.IsChecked()
1660	if not flag:
1661	menu_item.Check(False)
1662	self.batch_reset_flag = True
1663	else:
1664	menu_item.Check(True)
1665	self.batch_reset_flag = False
1666
1667	## post a message to status bar
1668	msg = "Set Chain Fitting: %s" % str(not self.batch_reset_flag)
1669	wx.PostEvent(self.parent,
1670	StatusEvent(status=msg))
1671
1672	def _onset_engine_park(self, event):
1673	"""
1674	set engine to park
1675	"""
1676	self._on_change_engine('park')
1677
1678	def _onset_engine_scipy(self, event):
1679	"""
1680	set engine to scipy
1681	"""
1682	self._on_change_engine('scipy')
1683
1684	def _on_slicer_event(self, event):
1685	"""
1686	Receive a panel as event and send it to guiframe
1687
1688	:param event: event containing a panel
1689
1690	"""
1691	if event.panel is not None:
1692	new_panel = event.panel
1693	self.slicer_panels.append(event.panel)
1694	# Set group ID if available
1695	event_id = self.parent.popup_panel(event.panel)
1696	event.panel.uid = event_id
1697	self.mypanels.append(event.panel)
1698
1699	def _onclearslicer(self, event):
1700	"""
1701	Clear the boxslicer when close the panel associate with this slicer
1702	"""
1703	name = event.GetEventObject().frame.GetTitle()
1704	print "name", name
1705	for panel in self.slicer_panels:
1706	if panel.window_caption == name:
1707
1708	for item in self.parent.panels:
1709	if hasattr(self.parent.panels[item], "uid"):
1710	if self.parent.panels[item].uid == panel.base.uid:
1711	self.parent.panels[item].onClearSlicer(event)
1712	#self.parent._mgr.Update()
1713	break
1714	break
1715
1716	def _return_engine_type(self):
1717	"""
1718	return the current type of engine
1719	"""
1720	return self._fit_engine
1721
1722	def _on_change_engine(self, engine='park'):
1723	"""
1724	Allow to select the type of engine to perform fit
1725
1726	:param engine: the key work of the engine
1727
1728	"""
1729	## saving fit engine name
1730	self._fit_engine = engine
1731	## change menu item state
1732	if engine == "park":
1733	self.menu1.FindItemById(self.park_id).Check(True)
1734	self.menu1.FindItemById(self.scipy_id).Check(False)
1735	else:
1736	self.menu1.FindItemById(self.park_id).Check(False)
1737	self.menu1.FindItemById(self.scipy_id).Check(True)
1738	## post a message to status bar
1739	msg = "Engine set to: %s" % self._fit_engine
1740	wx.PostEvent(self.parent,
1741	StatusEvent(status=msg))
1742	## send the current engine type to fitpanel
1743	self.fit_panel._on_engine_change(name=self._fit_engine)
1744
1745	def _on_model_panel(self, evt):
1746	"""
1747	react to model selection on any combo box or model menu.plot the model
1748
1749	:param evt: wx.combobox event
1750
1751	"""
1752	model = evt.model
1753	uid = evt.uid
1754	qmin = evt.qmin
1755	qmax = evt.qmax
1756	caption = evt.caption
1757	enable_smearer = evt.enable_smearer
1758	if model == None:
1759	return
1760	if uid not in self.page_finder.keys():
1761	return
1762	# save the name containing the data name with the appropriate model
1763	self.page_finder[uid].set_model(model)
1764	self.page_finder[uid].enable_smearing(enable_smearer)
1765	self.page_finder[uid].set_range(qmin=qmin, qmax=qmax)
1766	self.page_finder[uid].set_fit_tab_caption(caption=caption)
1767	if self.sim_page is not None and not self.batch_on:
1768	self.sim_page.draw_page()
1769	if self.batch_page is not None and self.batch_on:
1770	self.batch_page.draw_page()
1771
1772	def _update1D(self, x, output):
1773	"""
1774	Update the output of plotting model 1D
1775	"""
1776	msg = "Plot updating ... "
1777	wx.PostEvent(self.parent, StatusEvent(status=msg, type="update"))
1778
1779	def _complete1D(self, x, y, page_id, elapsed, index, model,
1780	weight=None, fid=None,
1781	toggle_mode_on=False, state=None,
1782	data=None, update_chisqr=True,
1783	source='model', plot_result=True):
1784	"""
1785	Complete plotting 1D data
1786	"""
1787	try:
1788	numpy.nan_to_num(y)
1789
1790	new_plot = Data1D(x=x, y=y)
1791	new_plot.is_data = False
1792	new_plot.dy = numpy.zeros(len(y))
1793	new_plot.symbol = GUIFRAME_ID.CURVE_SYMBOL_NUM
1794	_yaxis, _yunit = data.get_yaxis()
1795	_xaxis, _xunit = data.get_xaxis()
1796	new_plot.title = data.name
1797
1798	new_plot.group_id = data.group_id
1799	if new_plot.group_id == None:
1800	new_plot.group_id = data.group_id
1801	new_plot.id = str(page_id) + " " + data.name
1802	#if new_plot.id in self.color_dict:
1803	# new_plot.custom_color = self.color_dict[new_plot.id]
1804	#find if this theory was already plotted and replace that plot given
1805	#the same id
1806	theory_data = self.page_finder[page_id].get_theory_data(fid=data.id)
1807
1808	if data.is_data:
1809	data_name = str(data.name)
1810	else:
1811	data_name = str(model.__class__.__name__)
1812
1813	new_plot.name = model.name + " [" + data_name +"]"
1814	new_plot.xaxis(_xaxis, _xunit)
1815	new_plot.yaxis(_yaxis, _yunit)
1816	self.page_finder[page_id].set_theory_data(data=new_plot,
1817	fid=data.id)
1818	self.parent.update_theory(data_id=data.id, theory=new_plot,
1819	state=state)
1820	current_pg = self.fit_panel.get_page_by_id(page_id)
1821	title = new_plot.title
1822	batch_on = self.fit_panel.get_page_by_id(page_id).batch_on
1823	if not batch_on:
1824	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot,
1825	title=str(title)))
1826	elif plot_result:
1827	top_data_id = self.fit_panel.get_page_by_id(page_id).data.id
1828	if data.id == top_data_id:
1829	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot,
1830	title=str(title)))
1831	caption = current_pg.window_caption
1832	self.page_finder[page_id].set_fit_tab_caption(caption=caption)
1833
1834	self.page_finder[page_id].set_theory_data(data=new_plot,
1835	fid=data.id)
1836	if toggle_mode_on:
1837	wx.PostEvent(self.parent,
1838	NewPlotEvent(group_id=str(page_id) + " Model2D",
1839	action="Hide"))
1840	else:
1841	if update_chisqr:
1842	wx.PostEvent(current_pg,
1843	Chi2UpdateEvent(output=self._cal_chisqr(
1844	data=data,
1845	fid=fid,
1846	weight=weight,
1847	page_id=page_id,
1848	index=index)))
1849	else:
1850	self._plot_residuals(page_id=page_id, data=data, fid=fid,
1851	index=index, weight=weight)
1852
1853	msg = "Computation completed!"
1854	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1855	except:
1856	raise
1857
1858	def _update2D(self, output, time=None):
1859	"""
1860	Update the output of plotting model
1861	"""
1862	wx.PostEvent(self.parent, StatusEvent(status="Plot \
1863	#updating ... ", type="update"))
1864	#self.ready_fit()
1865
1866	def _complete2D(self, image, data, model, page_id, elapsed, index, qmin,
1867	qmax, fid=None, weight=None, toggle_mode_on=False, state=None,
1868	update_chisqr=True, source='model', plot_result=True):
1869	"""
1870	Complete get the result of modelthread and create model 2D
1871	that can be plot.
1872	"""
1873	numpy.nan_to_num(image)
1874	new_plot = Data2D(image=image, err_image=data.err_data)
1875	new_plot.name = model.name + '2d'
1876	new_plot.title = "Analytical model 2D "
1877	new_plot.id = str(page_id) + " " + data.name
1878	new_plot.group_id = str(page_id) + " Model2D"
1879	new_plot.detector = data.detector
1880	new_plot.source = data.source
1881	new_plot.is_data = False
1882	new_plot.qx_data = data.qx_data
1883	new_plot.qy_data = data.qy_data
1884	new_plot.q_data = data.q_data
1885	new_plot.mask = data.mask
1886	## plot boundaries
1887	new_plot.ymin = data.ymin
1888	new_plot.ymax = data.ymax
1889	new_plot.xmin = data.xmin
1890	new_plot.xmax = data.xmax
1891	title = data.title
1892
1893	new_plot.is_data = False
1894	if data.is_data:
1895	data_name = str(data.name)
1896	else:
1897	data_name = str(model.__class__.__name__) + '2d'
1898
1899	if len(title) > 1:
1900	new_plot.title = "Model2D for %s "% model.name + data_name
1901	new_plot.name = model.name + " [" + \
1902	data_name + "]"
1903	theory_data = deepcopy(new_plot)
1904
1905	self.page_finder[page_id].set_theory_data(data=theory_data,
1906	fid=data.id)
1907	self.parent.update_theory(data_id=data.id,
1908	theory=new_plot,
1909	state=state)
1910	current_pg = self.fit_panel.get_page_by_id(page_id)
1911	title = new_plot.title
1912	if not source == 'fit' and plot_result:
1913	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot,
1914	title=title))
1915	if toggle_mode_on:
1916	wx.PostEvent(self.parent,
1917	NewPlotEvent(group_id=str(page_id) + " Model1D",
1918	action="Hide"))
1919	else:
1920	# Chisqr in fitpage
1921	if update_chisqr:
1922	wx.PostEvent(current_pg,
1923	Chi2UpdateEvent(output=self._cal_chisqr(data=data,
1924	weight=weight,
1925	fid=fid,
1926	page_id=page_id,
1927	index=index)))
1928	else:
1929	self._plot_residuals(page_id=page_id, data=data, fid=fid,
1930	index=index, weight=weight)
1931	msg = "Computation completed!"
1932	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1933
1934	def _draw_model2D(self, model, page_id, qmin,
1935	qmax,
1936	data=None, smearer=None,
1937	description=None, enable2D=False,
1938	state=None,
1939	fid=None,
1940	weight=None,
1941	toggle_mode_on=False,
1942	update_chisqr=True, source='model'):
1943	"""
1944	draw model in 2D
1945
1946	:param model: instance of the model to draw
1947	:param description: the description of the model
1948	:param enable2D: when True allows to draw model 2D
1949	:param qmin: the minimum value to draw model 2D
1950	:param qmax: the maximum value to draw model 2D
1951	:param qstep: the number of division of Qx and Qy of the model to draw
1952
1953	"""
1954	if not enable2D:
1955	return None
1956	try:
1957	from model_thread import Calc2D
1958	## If a thread is already started, stop it
1959	if (self.calc_2D is not None) and self.calc_2D.isrunning():
1960	self.calc_2D.stop()
1961	## stop just raises a flag to tell the thread to kill
1962	## itself -- see the fix in Calc1D implemented to fix
1963	## an actual problem. Seems the fix should also go here
1964	## and may be the cause of other noted instabilities
1965	##
1966	## -PDB August 12, 2014
1967	while self.calc_2D.isrunning():
1968	time.sleep(0.1)
1969	self.calc_2D = Calc2D(model=model,
1970	data=data,
1971	page_id=page_id,
1972	smearer=smearer,
1973	qmin=qmin,
1974	qmax=qmax,
1975	weight=weight,
1976	fid=fid,
1977	toggle_mode_on=toggle_mode_on,
1978	state=state,
1979	completefn=self._complete2D,
1980	update_chisqr=update_chisqr, source=source)
1981	self.calc_2D.queue()
1982	except:
1983	raise
1984
1985	def _draw_model1D(self, model, page_id, data,
1986	qmin, qmax, smearer=None,
1987	state=None,
1988	weight=None,
1989	fid=None,
1990	toggle_mode_on=False, update_chisqr=True, source='model',
1991	enable1D=True):
1992	"""
1993	Draw model 1D from loaded data1D
1994
1995	:param data: loaded data
1996	:param model: the model to plot
1997
1998	"""
1999	if not enable1D:
2000	return
2001	try:
2002	from model_thread import Calc1D
2003	## If a thread is already started, stop it
2004	if (self.calc_1D is not None) and self.calc_1D.isrunning():
2005	self.calc_1D.stop()
2006	## stop just raises the flag -- the thread is supposed to
2007	## then kill itself but cannot. Paul Kienzle came up with
2008	## this fix to prevent threads from stepping on each other
2009	## which was causing a simple custom model to crash Sasview.
2010	## We still don't know why the fit sometimes lauched a second
2011	## thread -- something which should also be investigated.
2012	## The thread approach was implemented in order to be able
2013	## to lauch a computation in a separate thread from the GUI so
2014	## that the GUI can still respond to user input including
2015	## a request to stop the computation.
2016	## It seems thus that the whole thread approach used here
2017	## May need rethinking
2018	##
2019	## -PDB August 12, 2014
2020	while self.calc_1D.isrunning():
2021	time.sleep(0.1)
2022	self.calc_1D = Calc1D(data=data,
2023	model=model,
2024	page_id=page_id,
2025	qmin=qmin,
2026	qmax=qmax,
2027	smearer=smearer,
2028	state=state,
2029	weight=weight,
2030	fid=fid,
2031	toggle_mode_on=toggle_mode_on,
2032	completefn=self._complete1D,
2033	#updatefn = self._update1D,
2034	update_chisqr=update_chisqr,
2035	source=source)
2036	self.calc_1D.queue()
2037	except:
2038	msg = " Error occurred when drawing %s Model 1D: " % model.name
2039	msg += " %s" % sys.exc_value
2040	wx.PostEvent(self.parent, StatusEvent(status=msg))
2041
2042	def _cal_chisqr(self, page_id, data, weight, fid=None, index=None):
2043	"""
2044	Get handy Chisqr using the output from draw1D and 2D,
2045	instead of calling expansive CalcChisqr in guithread
2046	"""
2047	try:
2048	data_copy = deepcopy(data)
2049	except:
2050	return
2051	# default chisqr
2052	chisqr = None
2053	#to compute chisq make sure data has valid data
2054	# return None if data == None
2055	if not check_data_validity(data_copy) or data_copy == None:
2056	return chisqr
2057
2058	# Get data: data I, theory I, and data dI in order
2059	if data_copy.__class__.__name__ == "Data2D":
2060	if index == None:
2061	index = numpy.ones(len(data_copy.data), dtype=bool)
2062	if weight != None:
2063	data_copy.err_data = weight
2064	# get rid of zero error points
2065	index = index & (data_copy.err_data != 0)
2066	index = index & (numpy.isfinite(data_copy.data))
2067	fn = data_copy.data[index]
2068	theory_data = self.page_finder[page_id].get_theory_data(fid=data_copy.id)
2069	if theory_data == None:
2070	return chisqr
2071	gn = theory_data.data[index]
2072	en = data_copy.err_data[index]
2073	else:
2074	# 1 d theory from model_thread is only in the range of index
2075	if index == None:
2076	index = numpy.ones(len(data_copy.y), dtype=bool)
2077	if weight != None:
2078	data_copy.dy = weight
2079	if data_copy.dy == None or data_copy.dy == []:
2080	dy = numpy.ones(len(data_copy.y))
2081	else:
2082	## Set consitently w/AbstractFitengine:
2083	# But this should be corrected later.
2084	dy = deepcopy(data_copy.dy)
2085	dy[dy == 0] = 1
2086	fn = data_copy.y[index]
2087
2088	theory_data = self.page_finder[page_id].get_theory_data(fid=data_copy.id)
2089	if theory_data == None:
2090	return chisqr
2091	gn = theory_data.y
2092	en = dy[index]
2093
2094	# residual
2095	try:
2096	res = (fn - gn) / en
2097	except ValueError:
2098	print "Unmatch lengths %s, %s, %s"% (len(fn), len(gn), len(en))
2099	return
2100
2101	residuals = res[numpy.isfinite(res)]
2102	# get chisqr only w/finite
2103	chisqr = numpy.average(residuals * residuals)
2104
2105	self._plot_residuals(page_id=page_id, data=data_copy,
2106	fid=fid,
2107	weight=weight, index=index)
2108
2109	return chisqr
2110
2111	def _plot_residuals(self, page_id, weight, fid=None,
2112	data=None, index=None):
2113	"""
2114	Plot the residuals
2115
2116	:param data: data
2117	:param index: index array (bool)
2118	: Note: this is different from the residuals in cal_chisqr()
2119	"""
2120	data_copy = deepcopy(data)
2121	# Get data: data I, theory I, and data dI in order
2122	if data_copy.__class__.__name__ == "Data2D":
2123	# build residuals
2124	residuals = Data2D()
2125	#residuals.copy_from_datainfo(data)
2126	# Not for trunk the line below, instead use the line above
2127	data_copy.clone_without_data(len(data_copy.data), residuals)
2128	residuals.data = None
2129	fn = data_copy.data
2130	theory_data = self.page_finder[page_id].get_theory_data(fid=data_copy.id)
2131	gn = theory_data.data
2132	if weight == None:
2133	en = data_copy.err_data
2134	else:
2135	en = weight
2136	residuals.data = (fn - gn) / en
2137	residuals.qx_data = data_copy.qx_data
2138	residuals.qy_data = data_copy.qy_data
2139	residuals.q_data = data_copy.q_data
2140	residuals.err_data = numpy.ones(len(residuals.data))
2141	residuals.xmin = min(residuals.qx_data)
2142	residuals.xmax = max(residuals.qx_data)
2143	residuals.ymin = min(residuals.qy_data)
2144	residuals.ymax = max(residuals.qy_data)
2145	residuals.q_data = data_copy.q_data
2146	residuals.mask = data_copy.mask
2147	residuals.scale = 'linear'
2148	# check the lengths
2149	if len(residuals.data) != len(residuals.q_data):
2150	return
2151	else:
2152	# 1 d theory from model_thread is only in the range of index
2153	if data_copy.dy == None or data_copy.dy == []:
2154	dy = numpy.ones(len(data_copy.y))
2155	else:
2156	if weight == None:
2157	dy = numpy.ones(len(data_copy.y))
2158	## Set consitently w/AbstractFitengine:
2159	## But this should be corrected later.
2160	else:
2161	dy = weight
2162	dy[dy == 0] = 1
2163	fn = data_copy.y[index]
2164	theory_data = self.page_finder[page_id].get_theory_data(fid=data_copy.id)
2165	gn = theory_data.y
2166	en = dy[index]
2167	# build residuals
2168	residuals = Data1D()
2169	try:
2170	residuals.y = (fn - gn) / en
2171	except:
2172	msg = "ResidualPlot Error: different # of data points in theory"
2173	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error"))
2174	residuals.y = (fn - gn[index]) / en
2175	residuals.x = data_copy.x[index]
2176	residuals.dy = numpy.ones(len(residuals.y))
2177	residuals.dx = None
2178	residuals.dxl = None
2179	residuals.dxw = None
2180	residuals.ytransform = 'y'
2181	# For latter scale changes
2182	residuals.xaxis('\\rm{Q} ', 'A^{-1}')
2183	residuals.yaxis('\\rm{Residuals} ', 'normalized')
2184	theory_name = str(theory_data.name.split()[0])
2185	new_plot = residuals
2186	new_plot.name = "Residuals for " + str(theory_name) + "[" +\
2187	str(data.name) +"]"
2188	## allow to highlight data when plotted
2189	new_plot.interactive = True
2190	## when 2 data have the same id override the 1 st plotted
2191	new_plot.id = "res" + str(data_copy.id) + str(theory_name)
2192	##group_id specify on which panel to plot this data
2193	group_id = self.page_finder[page_id].get_graph_id()
2194	if group_id == None:
2195	group_id = data.group_id
2196	new_plot.group_id = "res" + str(group_id)
2197	#new_plot.is_data = True
2198	##post data to plot
2199	title = new_plot.name
2200	self.page_finder[page_id].set_residuals(residuals=new_plot,
2201	fid=data.id)
2202	self.parent.update_theory(data_id=data.id, theory=new_plot)
2203	batch_on = self.fit_panel.get_page_by_id(page_id).batch_on
2204	if not batch_on:
2205	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot, title=title))

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SasView

source: sasview/src/sans/perspectives/fitting/fitting.py @ 2b875e4c

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