fitpage1D.py @ b3328d8

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 b3328d8 was 693ab78, checked in by Gervaise Alina <gervyh@…>, 16 years ago
fix add error
Property mode set to `100644`
File size: 20.3 KB

Line
1	import sys
2	import wx
3	import wx.lib
4	import numpy,math
5	import copy
6
7	from sans.guicomm.events import StatusEvent
8	(ModelEventbox, EVT_MODEL_BOX) = wx.lib.newevent.NewEvent()
9	_BOX_WIDTH = 80
10
11	def format_number(value, high=False):
12	"""
13	Return a float in a standardized, human-readable formatted string
14	"""
15	try:
16	value = float(value)
17	except:
18	print "returning 0"
19	return "0"
20
21	if high:
22	return "%-6.4g" % value
23	else:
24	return "%-5.3g" % value
25
26
27	class FitPage1D(wx.Panel):
28	"""
29	FitPanel class contains fields allowing to display results when
30	fitting a model and one data
31	@note: For Fit to be performed the user should check at least one parameter
32	on fit Panel window.
33
34	"""
35	## Internal name for the AUI manager
36	window_name = "Fit page"
37	## Title to appear on top of the window
38	window_caption = "Fit Page"
39
40
41	def __init__(self, parent,data, args, *kwargs):
42	wx.Panel.__init__(self, parent, args, *kwargs)
43	"""
44	Initialization of the Panel
45	"""
46	self.manager = None
47	self.parent = parent
48	self.event_owner=None
49	#panel interface
50	self.vbox = wx.BoxSizer(wx.VERTICAL)
51	self.sizer4 = wx.GridBagSizer(5,5)
52	self.sizer3 = wx.GridBagSizer(5,5)
53	self.sizer2 = wx.GridBagSizer(5,5)
54	self.sizer1 = wx.GridBagSizer(5,5)
55	self.DataSource = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20))
56	self.DataSource.SetToolTipString("name of data to fit")
57	self.DataSource.SetValue(str(data.name))
58	self.modelbox = wx.ComboBox(self, -1)
59	id = wx.NewId()
60	self.btFit =wx.Button(self,id,'Fit')
61	self.btFit.Bind(wx.EVT_BUTTON, self.onFit,id=id)
62	self.btFit.SetToolTipString("Perform fit.")
63	self.vbox.Add(self.sizer3)
64	self.vbox.Add(self.sizer2)
65	self.vbox.Add(self.sizer4)
66	self.vbox.Add(self.sizer1)
67
68	id = wx.NewId()
69	self.btClose =wx.Button(self,id,'Close')
70	self.btClose.Bind(wx.EVT_BUTTON, self.onClose,id=id)
71	self.btClose.SetToolTipString("Close page.")
72	ix = 0
73	iy = 1
74	self.sizer3.Add(wx.StaticText(self, -1, 'Data Source'),(iy,ix),\
75	(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
76	ix += 1
77	self.sizer3.Add(self.DataSource,(iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
78	ix += 1
79	self.sizer3.Add((20,20),(iy,ix),(1,1),wx.RIGHT\|wx.EXPAND\|wx.ADJUST_MINSIZE,0)
80	ix = 0
81	iy += 1
82	self.sizer3.Add(wx.StaticText(self,-1,'Model'),(iy,ix),(1,1)\
83	, wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
84	ix += 1
85	self.sizer3.Add(self.modelbox,(iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
86
87	ix = 0
88	iy += 1
89	#set maximum range for x in linear scale
90	self.text4_3 = wx.StaticText(self, -1, 'Maximum Data\n Range (Linear)', style=wx.ALIGN_LEFT)
91	self.sizer4.Add(self.text4_3,(iy,ix),(1,1),\
92	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
93
94	ix += 1
95	self.text4_1 = wx.StaticText(self, -1, 'Min')
96	self.sizer4.Add(self.text4_1,(iy, ix),(1,1),\
97	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
98
99	ix += 2
100	self.text4_2 = wx.StaticText(self, -1, 'Max')
101	self.sizer4.Add(self.text4_2,(iy, ix),(1,1),\
102	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
103	ix = 0
104	iy += 1
105	self.text4_4 = wx.StaticText(self, -1, 'x range')
106	self.sizer4.Add(self.text4_4,(iy, ix),(1,1),\
107	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
108	ix += 1
109
110	self.xmin = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20))
111	self.xmin.SetValue(format_number(numpy.min(data.x)))
112	self.xmin.SetToolTipString("Minimun value of x in linear scale.")
113	self.sizer4.Add(self.xmin,(iy, ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
114	self.xmin.Bind(wx.EVT_KILL_FOCUS, self._onTextEnter)
115	self.xmin.Bind(wx.EVT_TEXT_ENTER, self._onTextEnter)
116
117	ix += 2
118	self.xmax = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20))
119	self.xmax.SetValue(format_number(numpy.max(data.x)))
120	self.xmax.SetToolTipString("Maximum value of x in linear scale.")
121	self.sizer4.Add(self.xmax,(iy,ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
122	self.xmax.Bind(wx.EVT_KILL_FOCUS, self._onTextEnter)
123	self.xmax.Bind(wx.EVT_TEXT_ENTER, self._onTextEnter)
124
125	#Set chisqr result into TextCtrl
126	ix = 0
127	iy = 1
128	self.text1_1 = wx.StaticText(self, -1, 'Chi2/dof', style=wx.ALIGN_LEFT)
129	self.sizer1.Add(self.text1_1,(iy,ix),(1,1),\
130	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
131	ix += 1
132	self.tcChi = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20))
133	self.tcChi.SetToolTipString("Chi^2 over degrees of freedom.")
134	self.sizer1.Add(self.tcChi,(iy,ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
135	ix +=2
136	self.sizer1.Add(self.btFit,(iy,ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
137	iy+= 1
138	ix = 3
139	self.sizer1.Add( self.btClose,(iy,ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
140	# contains link between model ,all its parameters, and panel organization
141	self.parameters=[]
142	#contains link between a model and selected parameters to fit
143	self.param_toFit=[]
144	# model on which the fit would be performed
145	self.model=None
146
147
148	#dictionary of model name and model class
149	self.model_list_box={}
150
151	self.data=data
152	self.vbox.Layout()
153	self.GrandParent.GetSizer().Layout()
154	self.vbox.Fit(self)
155	self.SetSizer(self.vbox)
156	self.Centre()
157
158
159
160	def set_owner(self,owner):
161	"""
162	set owner of fitpage
163	@param owner: the class responsible of plotting
164	"""
165	self.event_owner=owner
166
167
168	def set_manager(self, manager):
169	"""
170	set panel manager
171	@param manager: instance of plugin fitting
172	"""
173	self.manager = manager
174
175
176	def onClose(self,event):
177	""" close the page associated with this panel"""
178	self.GrandParent.onClose()
179
180
181	def compute_chisqr(self):
182	""" @param fn: function that return model value
183	@return residuals
184	"""
185	print self.data.x
186	print self.data.y
187	print self.data.dy
188
189	flag=self.checkFitRange()
190	if flag== True:
191	try:
192	qmin = float(self.xmin.GetValue())
193	qmax = float(self.xmax.GetValue())
194	x,y,dy = [numpy.asarray(v) for v in (self.data.x,self.data.y,self.data.dy)]
195	if qmin==None and qmax==None:
196	fx =numpy.asarray([self.model.run(v) for v in x])
197	res=(y - fx)/dy
198	else:
199	idx = (x>= qmin) & (x <=qmax)
200	fx = numpy.asarray([self.model.run(item)for item in x[idx ]])
201	res= (y[idx] - fx)/dy[idx]
202
203
204	sum=0
205	for item in res:
206	if numpy.isfinite(item):
207	sum +=item
208	self.tcChi.SetValue(format_number(math.fabs(sum)))
209	except:
210	wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\
211	"Chisqr cannot be compute: %s"% sys.exc_value))
212
213
214	def onFit(self,event):
215	""" signal for fitting"""
216
217	flag=self.checkFitRange()
218	self.set_manager(self.manager)
219
220	qmin=float(self.xmin.GetValue())
221	qmax =float( self.xmax.GetValue())
222	if len(self.param_toFit) >0 and flag==True:
223	self.manager.schedule_for_fit( value=1,fitproblem =None)
224	self.manager._on_single_fit(qmin=qmin,qmax=qmax)
225	else:
226	wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\
227	"Select at least on parameter to fit "))
228	def populate_box(self, dict):
229	"""
230	Populate each combox box of each page
231	@param page: the page to populate
232	"""
233	id=0
234	self.model_list_box=dict
235	list_name=[]
236	for item in self.model_list_box.itervalues():
237	name = item.__name__
238	if hasattr(item, "name"):
239	name = item.name
240	list_name.append(name)
241	list_name.sort()
242	for name in list_name:
243	self.modelbox.Insert(name,int(id))
244	id+=1
245	wx.EVT_COMBOBOX(self.modelbox,-1, self._on_select_model)
246	return 0
247
248
249	def _on_select_model(self,event):
250	"""
251	react when a model is selected from page's combo box
252	post an event to its owner to draw an appropriate theory
253	"""
254
255	for item in self.model_list_box.itervalues():
256	name = item.__name__
257	if hasattr(item, "name"):
258	name = item.name
259	#print "fitpage: _on_select_model model name",name ,event.GetString()
260	if name ==event.GetString():
261	try:
262	evt = ModelEventbox(model=item(),name=name)
263	wx.PostEvent(self.event_owner, evt)
264	except:
265	raise #ValueError,"model.name is not equal to model class name"
266	break
267
268	def _onTextEnter(self,event):
269	"""
270	set a flag to determine if the fitting range entered by the user is valid
271	"""
272
273	try:
274	flag=self.checkFitRange()
275	if flag==True and self.model!=None:
276	print"fit page",self.xmin.GetValue(),self.xmax.GetValue()
277	self.manager.redraw_model(float(self.xmin.GetValue())\
278	,float(self.xmax.GetValue()))
279	except:
280
281	wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\
282	"Drawing Error:wrong value entered %s"% sys.exc_value))
283
284	def checkFitRange(self):
285	"""
286	Check the validity of fitting range
287	@note: xmin should always be less than xmax or else each control box
288	background is colored in pink.
289	"""
290
291	flag = True
292	valueMin = self.xmin.GetValue()
293	valueMax = self.xmax.GetValue()
294	# Check for possible values entered
295	print "fitpage: checkfitrange:",valueMin,valueMax
296	try:
297	if (float(valueMax)> float(valueMin)):
298	self.xmax.SetBackgroundColour(wx.WHITE)
299	self.xmin.SetBackgroundColour(wx.WHITE)
300	else:
301	flag = False
302	self.xmin.SetBackgroundColour("pink")
303	self.xmax.SetBackgroundColour("pink")
304	except:
305	flag = False
306	self.xmin.SetBackgroundColour("pink")
307	self.xmax.SetBackgroundColour("pink")
308
309	self.xmin.Refresh()
310	self.xmax.Refresh()
311	return flag
312
313
314	def get_model_box(self):
315	""" return reference to combox box self.model"""
316	return self.modelbox
317
318
319	def get_param_list(self):
320	"""
321	@return self.param_toFit: list containing references to TextCtrl
322	checked.Theses TextCtrl will allow reference to parameters to fit.
323	@raise: if return an empty list of parameter fit will nnote work
324	properly so raise ValueError,"missing parameter to fit"
325	"""
326	if self.param_toFit !=[]:
327	return self.param_toFit
328	else:
329	raise ValueError,"missing parameter to fit"
330
331
332	def set_panel(self,model):
333	"""
334	Build the panel from the model content
335	@param model: the model selected in combo box for fitting purpose
336	"""
337
338	self.sizer2.Clear(True)
339	self.parameters = []
340	self.param_toFit=[]
341	self.model = model
342	keys = self.model.getParamList()
343	keys.sort()
344	iy = 1
345	ix = 0
346	self.cb1 = wx.CheckBox(self, -1,'Parameters', (10, 10))
347	wx.EVT_CHECKBOX(self, self.cb1.GetId(), self.select_all_param)
348	self.sizer2.Add(self.cb1,(iy, ix),(1,1),\
349	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
350	ix +=1
351	self.text2_2 = wx.StaticText(self, -1, 'Values')
352	self.sizer2.Add(self.text2_2,(iy, ix),(1,1),\
353	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
354	ix +=2
355	self.text2_3 = wx.StaticText(self, -1, 'Errors')
356	self.sizer2.Add(self.text2_3,(iy, ix),(1,1),\
357	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
358	self.text2_3.Hide()
359	ix +=1
360	self.text2_4 = wx.StaticText(self, -1, 'Units')
361	self.sizer2.Add(self.text2_4,(iy, ix),(1,1),\
362	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
363	self.text2_4.Hide()
364	for item in keys:
365	iy += 1
366	ix = 0
367
368	cb = wx.CheckBox(self, -1, item, (10, 10))
369	cb.SetValue(False)
370	self.sizer2.Add( cb,( iy, ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
371	wx.EVT_CHECKBOX(self, cb.GetId(), self.select_param)
372
373	ix += 1
374	value= self.model.getParam(item)
375	ctl1 = wx.TextCtrl(self, -1, size=(_BOX_WIDTH,20), style=wx.TE_PROCESS_ENTER)
376	ctl1.SetValue(str (format_number(value)))
377	ctl1.Bind(wx.EVT_KILL_FOCUS, self._onparamEnter)
378	ctl1.Bind(wx.EVT_TEXT_ENTER,self._onparamEnter)
379	self.sizer2.Add(ctl1, (iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
380	ix += 1
381	text2=wx.StaticText(self, -1, '+/-')
382	self.sizer2.Add(text2,(iy, ix),(1,1),\
383	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
384	text2.Hide()
385	ix += 1
386	ctl2 = wx.TextCtrl(self, -1, size=(_BOX_WIDTH,20), style=wx.TE_PROCESS_ENTER)
387	self.sizer2.Add(ctl2, (iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
388	ctl2.Hide()
389	ix +=1
390
391	# Units
392
393	try:
394	units = wx.StaticText(self, -1, self.model.details[item][0], style=wx.ALIGN_LEFT)
395	except:
396	units = wx.StaticText(self, -1, "", style=wx.ALIGN_LEFT)
397
398	self.sizer2.Add(units, (iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
399	#save data
400	self.parameters.append([cb,ctl1,text2,ctl2])
401	#Display units text on panel
402	for item in keys:
403	if self.model.details[item][0]!='':
404	self.text2_4.Show()
405	break
406	else:
407	self.text2_4.Hide()
408	#Disable or enable fit button
409
410	if not (len(self.param_toFit ) >0):
411	self.xmin.Disable()
412	self.xmax.Disable()
413	else:
414	self.xmin.Enable()
415	self.xmax.Enable()
416
417	self.compute_chisqr()
418	self.vbox.Layout()
419	self.GrandParent.GetSizer().Layout()
420
421
422
423	def _onparamEnter(self,event):
424	"""
425	when enter value on panel redraw model according to changed
426	"""
427	self.set_model_parameter()
428	self.compute_chisqr()
429
430	def set_model_parameter(self):
431	"""
432	this method redraws the model according to parameters values changes
433	and the reset model according to paramaters changes
434	"""
435	if len(self.parameters) !=0 and self.model !=None:
436	for item in self.parameters:
437	try:
438	name=str(item[0].GetLabelText())
439	value= float(item[1].GetValue())
440	self.model.setParam(name,value)
441	except:
442	wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\
443	"Drawing Error:wrong value entered : %s"% sys.exc_value))
444	self.manager.redraw_model(float(self.xmin.GetValue())\
445	,float(self.xmax.GetValue()))
446
447	def select_all_param(self,event):
448	"""
449	set to true or false all checkBox given the main checkbox value cb1
450	"""
451	self.param_toFit=[]
452	if self.parameters !=[]:
453	if self.cb1.GetValue()==True:
454	for item in self.parameters:
455	item[0].SetValue(True)
456	list= [item[0],item[1],item[2],item[3]]
457	self.param_toFit.append(list )
458
459	if not (len(self.param_toFit ) >0):
460	self.xmin.Disable()
461	self.xmax.Disable()
462	else:
463	self.xmin.Enable()
464	self.xmax.Enable()
465	else:
466	for item in self.parameters:
467	item[0].SetValue(False)
468	self.param_toFit=[]
469
470	self.xmin.Disable()
471	self.xmax.Disable()
472
473
474	def select_param(self,event):
475	"""
476	Select TextCtrl checked for fitting purpose and stores them
477	in self.param_toFit=[] list
478	"""
479	self.param_toFit=[]
480	for item in self.parameters:
481	if item[0].GetValue()==True:
482	list= [item[0],item[1],item[2],item[3]]
483	self.param_toFit.append(list )
484	else:
485	if item in self.param_toFit:
486	self.param_toFit.remove(item)
487	if len(self.parameters)==len(self.param_toFit):
488	self.cb1.SetValue(True)
489	else:
490	self.cb1.SetValue(False)
491
492	if not (len(self.param_toFit ) >0):
493	self.xmin.Disable()
494	self.xmax.Disable()
495	else:
496	self.xmin.Enable()
497	self.xmax.Enable()
498
499
500
501
502	def onsetValues(self,chisqr, out,cov):
503	"""
504	Build the panel from the fit result
505	@param chisqr:Value of the goodness of fit metric
506	@param out:list of parameter with the best value found during fitting
507	@param cov:Covariance matrix
508
509	"""
510	#print "fitting : onsetvalues out",out
511	self.tcChi.Clear()
512	self.tcChi.SetValue(format_number(chisqr))
513	params = {}
514	is_modified = False
515	has_error = False
516	if out.__class__==numpy.float64:
517	self.param_toFit[0][1].SetValue(format_number(out))
518	self.param_toFit[0][1].Refresh()
519	if cov !=None :
520	self.text2_3.Show()
521	self.param_toFit[0][2].Show()
522	self.param_toFit[0][3].Clear()
523	self.param_toFit[0][3].SetValue(format_number(cov[0]))
524	self.param_toFit[0][3].Show()
525	#out is a list : set parameters and errors in TextCtrl
526	else:
527	i=0
528	#print "fitpage: list param model",list
529	#for item in self.param_toFit:
530	# print "fitpage: list display",item[0].GetLabelText()
531	for item in self.param_toFit:
532	if( out != None ) and len(out)<=len(self.param_toFit)and i < len(out):
533	#item[1].SetValue(format_number(out[i]))
534	item[1].SetValue(format_number(self.model.getParam(item[0].GetLabelText())))
535	item[1].Refresh()
536	if (cov !=None)and len(cov)<=len(self.param_toFit)and i < len(cov):
537	self.text2_3.Show()
538	item[2].Show()
539	item[3].Clear()
540	item[3].SetValue(format_number(cov[i]))
541	item[3].Show()
542	i+=1
543
544	self.vbox.Layout()
545	self.GrandParent.GetSizer().Layout()
546

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source: sasview/sansview/perspectives/fitting/fitpage1D.py @ b3328d8

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