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