fitDialog.py @ edce46e

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 edce46e was b43a009, checked in by Gervaise Alina <gervyh@…>, 16 years ago
some modificatiosn made
Property mode set to `100644`
File size: 15.4 KB

Rev	Line
[6cfe703]	1	#!/usr/bin/python
	2
	3	# fitDialog.py
	4
	5	import wx
[e40b651]	6	from PlotPanel import PlotPanel
	7	from plottables import Theory1D
	8	import math,pylab,fittings
[831149e]	9	import transform
	10
	11
[6cfe703]	12	class LinearFit(wx.Dialog):
[f52bea1]	13	def __init__(self, parent, plottable, push_data,transform, id, title):
[90640f2]	14	wx.Dialog.__init__(self, parent, id, title, size=(450, 400))
[6cfe703]	15	"""
[b43a009]	16	Dialog window pops- up when select Linear fit on Context menu
	17	Displays fitting parameters
[6cfe703]	18	"""
	19	self.parent = parent
[f52bea1]	20	self.transform = transform
[e40b651]	21	#dialog panel self call function to plot the fitting function
	22	self.push_data = push_data
	23	#dialog self plottable
[b43a009]	24
[e40b651]	25	self.plottable = plottable
[ddff053]	26	# Receive transformations of x and y
[b43a009]	27	self.xLabel,self.yLabel,self.Avalue,self.Bvalue,\
	28	self.ErrAvalue,self.ErrBvalue,self.Chivalue= self.transform()
[e40b651]	29	#Dialog interface
[6cfe703]	30	panel = wx.Panel(self, -1, style=wx.SIMPLE_BORDER)
	31	vbox = wx.BoxSizer(wx.VERTICAL)
[106ef4d]	32	sizer = wx.GridBagSizer(5,5)
	33
[6cfe703]	34	vbox.Add(panel, 1, wx.EXPAND \| wx.ALL)
	35
[f63f5ff]	36	self.tcA = wx.TextCtrl(panel, -1,size=(120,20),style=wx.SIMPLE_BORDER)
	37	self.tcErrA = wx.TextCtrl(panel, -1,size=(120,20),style=wx.SIMPLE_BORDER)
	38	self.tcB = wx.TextCtrl(panel, -1,size=(120,20),style=wx.SIMPLE_BORDER)
	39	self.tcErrB = wx.TextCtrl(panel, -1,size=(120,20),style=wx.SIMPLE_BORDER)
	40	self.tcChi = wx.TextCtrl(panel, -1,size=(120,20),style=wx.SIMPLE_BORDER)
[831149e]	41	self.FXmin = wx.TextCtrl(panel,-1,size=(120,20),style=wx.SIMPLE_BORDER)
	42	self.FXmax = wx.TextCtrl(panel,-1,size=(120,20),style=wx.SIMPLE_BORDER)
[ddff053]	43	self.FXminX = wx.TextCtrl(panel,-1,size=(120,20),style=wx.SIMPLE_BORDER)
	44	self.FXmaxX = wx.TextCtrl(panel,-1,size=(120,20),style=wx.SIMPLE_BORDER)
[831149e]	45	self.PXmin = wx.TextCtrl(panel,-1,size=(120,20),style=wx.SIMPLE_BORDER)
	46	self.PXmax = wx.TextCtrl(panel,-1,size=(120,20),style=wx.SIMPLE_BORDER)
[106ef4d]	47	self.btFit =wx.Button(panel,-1,'Fit',size=(120, 30))
	48	self.btClose =wx.Button(panel, wx.ID_CANCEL,'Close',size=(90, 30) )
	49	self.static_line_1 = wx.StaticLine(panel, -1)
[8e44d51]	50
[106ef4d]	51	ix = 0
[6cfe703]	52	iy = 1
[106ef4d]	53	sizer.Add(wx.StaticText(panel, -1, 'y = Ax +B'),(iy, ix),(1,1),\
	54	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
	55	iy+=1
	56	sizer.Add(wx.StaticText(panel, -1, 'Param A'),(iy, ix),\
	57	(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
[6cfe703]	58	ix += 1
[106ef4d]	59	sizer.Add(self.tcA,(iy, ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[6cfe703]	60	ix += 1
[106ef4d]	61	sizer.Add(wx.StaticText(panel, -1, '+/-'),(iy, ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[6cfe703]	62	ix += 1
[106ef4d]	63	sizer.Add(self.tcErrA, (iy, ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[6cfe703]	64	iy += 1
[106ef4d]	65	ix = 0
	66	sizer.Add(wx.StaticText(panel, -1, 'Param B'),(iy, ix),(1,1),\
	67	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
[6cfe703]	68	ix += 1
[106ef4d]	69	sizer.Add(self.tcB, (iy, ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[6cfe703]	70	ix += 1
[106ef4d]	71	sizer.Add(wx.StaticText(panel, -1, '+/-'),(iy, ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[6cfe703]	72	ix += 1
[106ef4d]	73	sizer.Add(self.tcErrB, (iy, ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[6cfe703]	74	iy += 1
[106ef4d]	75	ix = 0
	76	sizer.Add(wx.StaticText(panel, -1, 'Chi ^{2}'),(iy, ix),(1,1),\
	77	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
[6cfe703]	78	ix += 1
[106ef4d]	79	sizer.Add(self.tcChi, (iy, ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[6cfe703]	80	iy += 1
	81	ix = 1
[106ef4d]	82	sizer.Add(wx.StaticText(panel, -1, 'Xmin'),(iy, ix),(1,1),\
	83	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[6cfe703]	84	ix += 2
[106ef4d]	85	sizer.Add(wx.StaticText(panel, -1, 'Xmax'),(iy, ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[6cfe703]	86	iy += 1
[831149e]	87	ix = 0
	88	sizer.Add(wx.StaticText(panel, -1, 'Plotted Range'),(iy, ix),(1,1),\
	89	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
	90	ix +=1
	91	sizer.Add(self.PXmin, (iy, ix),(1,1),\
	92	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
	93	ix += 2
	94	sizer.Add(self.PXmax, (iy, ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[b43a009]	95
[ddff053]	96	iy += 1
[831149e]	97	ix = 0
[b43a009]	98	sizer.Add(wx.StaticText(panel, -1, 'Fit Range of '+self.xLabel),(iy, ix),(1,1),\
[831149e]	99	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
	100	ix += 1
	101	sizer.Add(self.FXmin, (iy, ix),(1,1),\
[106ef4d]	102	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[6cfe703]	103	ix += 2
[831149e]	104	sizer.Add(self.FXmax, (iy, ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[90640f2]	105
[ddff053]	106	iy += 1
	107	ix = 0
	108	sizer.Add(wx.StaticText(panel, -1, 'Fit Range of x'),(iy, ix),(1,1),\
	109	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
	110	ix += 1
	111	sizer.Add(self.FXminX, (iy, ix),(1,1),\
	112	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
	113	ix += 2
	114	sizer.Add(self.FXmaxX, (iy, ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
[6cfe703]	115	iy += 1
[106ef4d]	116	ix = 1
	117
	118	sizer.Add(self.btFit, (iy, ix),(1,1), wx.LEFT\|wx.ADJUST_MINSIZE, 0)
[e40b651]	119	self.btFit.Bind(wx.EVT_BUTTON, self._onFit)
[106ef4d]	120	ix += 2
	121	sizer.Add(self.btClose, (iy, ix),(1,1),\
	122	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
	123
[6cfe703]	124	panel.SetSizer(sizer)
	125	self.SetSizer(vbox)
	126	self.Centre()
[8e44d51]	127
[e40b651]	128	# Receives the type of model for the fitting
	129	from LineModel import LineModel
	130	self.model = LineModel()
[1fdb81d]	131
	132	#Display the fittings values
	133	self.default_A = self.model.getParam('A')
	134	self.default_B = self.model.getParam('B')
	135	self.cstA = fittings.Parameter(self.model, 'A', self.default_A)
	136	self.cstB = fittings.Parameter(self.model, 'B', self.default_B)
	137
	138	# Set default value of parameter in fit dialog
[90640f2]	139
[b43a009]	140	if self.Avalue==None:
	141	self.tcA.SetLabel(str(self.default_A))
	142	else :
	143	self.tcA.SetLabel(str(self.Avalue))
	144	if self.Bvalue==None:
	145	self.tcB.SetLabel(str(self.default_B))
	146	else:
	147	self.tcB.SetLabel(str(self.Bvalue))
	148	if self.ErrAvalue==None:
	149	self.tcErrA.SetLabel(str(0.0))
	150	else:
	151	self.tcErrA.SetLabel(str(self.ErrAvalue))
	152	if self.ErrBvalue==None:
	153	self.tcErrB.SetLabel(str(0.0))
	154	else:
	155	self.tcErrB.SetLabel(str(self.ErrBvalue))
	156	if self.Chivalue==None:
	157	self.tcChi.SetLabel(str(0.0))
	158	else:
	159	self.tcChi.SetLabel(str(self.Chivalue))
[831149e]	160	if self.plottable.x !=[]:
	161	self.mini =min(self.plottable.x)
	162	self.maxi =max(self.plottable.x)
[90640f2]	163
[831149e]	164	self.FXmin.SetLabel(str(self.mini))
	165	self.FXmax.SetLabel(str(self.maxi))
[ddff053]	166	self.FXmin.Disable()
	167	self.FXmax.Disable()
[90640f2]	168
[831149e]	169	self.PXmin.SetValue(str(self.mini))
	170	self.PXmax.SetValue(str(self.maxi))
	171	self.PXmin.Disable()
	172	self.PXmax.Disable()
[90640f2]	173
	174	self.FXminX.SetLabel(str(self.mini))
	175	self.FXmaxX.SetLabel(str(self.maxi))
	176
	177
[6cfe703]	178	def _onFit(self ,event):
[f52bea1]	179	"""
	180	Performs the fit. Receive an event when clicking on the button Fit.Computes chisqr ,
	181	A and B parameters of the best linear fit y=Ax +B
	182	Push a plottable to
	183	"""
	184	tempx=[]
	185	tempy=[]
[7a03e65]	186	tempdy = []
[ddff053]	187
[5789654]	188	#store the values of View in x,y, dx,dy
	189	x,y,dx,dy=self.plottable.returnValuesOfView()
[1fdb81d]	190
[106ef4d]	191	# Check if View contains a x array .we online fit when x exits
	192	# makes transformation for y as a line to fit
[831149e]	193	if x != []:
[ddff053]	194
	195
[90640f2]	196	if(self.checkFitValues(self.FXminX) == True):
[f193585]	197	#Check if the field of Fit Dialog contain values and use the x max and min of the user
[ddff053]	198	xmin,xmax = self._checkVal(self.FXminX.GetValue(),self.FXmaxX.GetValue())
	199
[f193585]	200	xminView=self.floatTransform(xmin)
	201	xmaxView=self.floatTransform(xmax)
[b43a009]	202	if (self.xLabel=="log10(x)"):
[416223d]	203	self.FXmin.SetValue(str(math.log10(xminView)))
	204	self.FXmax.SetValue(str(math.log10(xmaxView)))
	205	else:
	206	self.FXmin.SetValue(str(xminView))
	207	self.FXmax.SetValue(str(xmaxView))
[ddff053]	208	self.FXmin.Disable()
	209	self.FXmax.Disable()
[f193585]	210	# Store the transformed values of view x, y,dy in variables before the fit
[b43a009]	211	if self.yLabel.lower() == "log10(y)":
	212	if (self.xLabel.lower() == "log10(x)"):
[f193585]	213	for i in range(len(x)):
[34ae302]	214	if x[i]>= math.log10(xmin):
[f193585]	215	tempy.append(math.log10(y[i]))
	216	tempdy.append(transform.errToLogX(y[i],0,dy[i],0))
	217	else:
[34ae302]	218	for i in range(len(y)):
	219	tempy.append(math.log10(y[i]))
[f193585]	220	tempdy.append(transform.errToLogX(y[i],0,dy[i],0))
	221	else:
	222	tempy = y
	223	tempdy = dy
	224
[b43a009]	225	if (self.xLabel.lower() == "log10(x)"):
[f193585]	226	for x_i in x:
[34ae302]	227	if x_i >= math.log10(xmin):
[f193585]	228	tempx.append(math.log10(x_i))
	229	else:
	230	tempx = x
[b43a009]	231
[f193585]	232	#Find the fitting parameters
[ddff053]	233
[b43a009]	234	if (self.xLabel.lower() == "log10(x)"):
[34ae302]	235	chisqr, out, cov = fittings.sansfit(self.model, [self.cstA, self.cstB],
	236	tempx, tempy,tempdy,math.log10(xmin),math.log10(xmax))
	237	else:
	238	chisqr, out, cov = fittings.sansfit(self.model,
[f193585]	239	[self.cstA, self.cstB],tempx, tempy,tempdy,xminView,xmaxView)
[b43a009]	240	#print "this out",out
[f193585]	241	#Check that cov and out are iterable before displaying them
	242	if cov ==None:
	243	errA =0.0
	244	errB =0.0
	245	else:
	246	errA= math.sqrt(cov[0][0])
	247	errB= math.sqrt(cov[1][1])
	248	if out==None:
	249	cstA=0.0
	250	cstB=0.0
	251	else:
	252	cstA=out[0]
	253	cstB=out[1]
	254	# Reset model with the right values of A and B
	255	self.model.setParam('A', float(cstA))
	256	self.model.setParam('B', float(cstB))
[3aa7074]	257
[f193585]	258	tempx = []
	259	tempy = []
	260	y_model = 0.0
	261	# load tempy with the minimum transformation
	262
[b43a009]	263	if self.xLabel == "log10(x)":
[f193585]	264	y_model = self.model.run(math.log10(xmin))
	265	tempx.append(xmin)
	266	else:
	267	y_model = self.model.run(xminView)
	268	tempx.append(xminView)
	269
[b43a009]	270	if self.yLabel == "log10(y)":
[f193585]	271	tempy.append(math.pow(10,y_model))
	272	print "tempy",tempy
	273	else:
	274	tempy.append(y_model)
	275
	276	# load tempy with the maximum transformation
[b43a009]	277	if self.xLabel == "log10(x)":
[f193585]	278	y_model = self.model.run(math.log10(xmax))
	279	tempx.append(xmax)
	280	else:
	281	y_model = self.model.run(xmaxView)
	282	tempx.append(xmaxView)
	283
[b43a009]	284	if self.yLabel == "log10(y)":
[f193585]	285	tempy.append(math.pow(10,y_model))
	286	else:
	287	tempy.append(y_model)
[b43a009]	288	self.Avalue=cstA
	289	self.Bvalue=cstB
	290	self.ErrAvalue=errA
	291	self.ErrBvalue=errB
	292	self.Chivalue=chisqr
	293	self.push_data(tempx,tempy,xminView,xmaxView,xmin,xmax,self._ongetValues())
[f193585]	294
	295	# Display the fitting value on the Fit Dialog
	296	self._onsetValues(cstA, cstB, errA,errB,chisqr)
[b43a009]	297
	298
[7a03e65]	299
[6cfe703]	300	def _onsetValues(self,cstA,cstB,errA,errB,Chi):
[f52bea1]	301	"""
	302	Display the value on fit Dialog
	303	"""
	304	self.tcA.SetValue(str(cstA))
	305	self.tcB.SetValue(str(cstB))
	306	self.tcErrA.SetValue(str(errA))
	307	self.tcErrB.SetValue(str(errB))
	308	self.tcChi.SetValue(str(Chi))
[b43a009]	309
	310	def _ongetValues(self):
	311	"""
	312	Display the value on fit Dialog
	313	"""
	314	return self.Avalue, self.Bvalue,self.ErrAvalue,self.ErrBvalue,self.Chivalue
[e40b651]	315
	316	def _returnPlottable(self):
	317	return self.file_data1
	318
[831149e]	319	def _checkVal(self,usermin, usermax):
[6cfe703]	320	"""
[831149e]	321	Ensure that fields parameter contains a min and a max value
	322	within x min and x max range
[6cfe703]	323	"""
[831149e]	324	if float(usermin) < float(usermax):
	325	if float(usermin) >= float(self.mini) and float(usermin) < float(self.maxi):
[ddff053]	326	self.FXminX.SetValue(str(usermin))
[831149e]	327	else:
[ddff053]	328	self.FXminX.SetValue(str(self.mini))
[831149e]	329
	330	if float(usermax) > float(self.mini) and float(usermax) <= float(self.maxi):
[ddff053]	331	self.FXmaxX.SetLabel(str(usermax))
[831149e]	332	else:
[ddff053]	333	self.FXmaxX.SetLabel(str(self.maxi))
[831149e]	334
[ddff053]	335	mini =float(self.FXminX.GetValue())
	336	maxi =float(self.FXmaxX.GetValue())
[831149e]	337
	338	return mini, maxi
	339	def floatTransform(self,x):
	340	"""
	341	transform a float.It is use to determine the x.View min and x.View max for values
	342	not in x
	343	"""
[b43a009]	344	if ( self.xLabel=="x" ):
[831149e]	345	return transform.toX(x)
	346
[b43a009]	347	if ( self.xLabel=="x^(2)" ):
[831149e]	348	return transform.toX2(x)
	349
[b43a009]	350	if (self.xLabel=="log10(x)" ):
[831149e]	351	if x >0:
[34ae302]	352	return x
[831149e]	353	else:
	354	raise ValueError,"cannot compute log of a negative number"
[f193585]	355
	356	def checkFitValues(self,item):
	357	"""
	358	Check the validity of input values
	359	"""
	360	flag = True
	361	value = item.GetValue()
	362	# Check for possible values entered
[b43a009]	363	if (self.xLabel=="log10(x)"):
[f193585]	364	if (float(value) > 0):
	365	item.SetBackgroundColour(wx.WHITE)
	366	item.Refresh()
	367	else:
	368	flag = False
	369	item.SetBackgroundColour("pink")
	370	item.Refresh()
	371
	372	return flag
[831149e]	373
[ddff053]	374	def setFitRange(self,xmin,xmax,Reelxmin,Reelxmax):
[b43a009]	375	if (self.xLabel=="log10(x)"):
[90640f2]	376	self.FXmin.SetValue(str(math.log10(xmin)))
	377	self.FXmax.SetValue(str(math.log10(xmax)))
	378	else:
	379	self.FXmin.SetValue(str(xmin))
	380	self.FXmax.SetValue(str(xmax))
[ddff053]	381	self.FXminX.SetValue(str(Reelxmin))
	382	self.FXmaxX.SetValue(str(Reelxmax))
	383
[106ef4d]	384
[6cfe703]	385	if __name__ == "__main__":
	386	app = wx.App()
	387	dialog=LinearFit(None, -1, 'Fitting')
	388	dialog.ShowModal()
	389	app.MainLoop()
	390
	391

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SasView

source: sasview/guitools/fitDialog.py @ edce46e

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