| 1 | import wx |
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| 2 | from plottables import Theory1D |
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| 3 | import math |
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| 4 | import numpy |
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| 5 | import fittings |
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| 6 | import transform |
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| 7 | import sys |
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| 8 | |
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| 9 | # Linear fit panel size |
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| 10 | if sys.platform.count("win32") > 0: |
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| 11 | FONT_VARIANT = 0 |
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| 12 | PNL_WIDTH = 450 |
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| 13 | PNL_HEIGHT = 500 |
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| 14 | else: |
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| 15 | FONT_VARIANT = 1 |
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| 16 | PNL_WIDTH = 500 |
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| 17 | PNL_HEIGHT = 500 |
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| 18 | RG_ON = True |
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| 19 | |
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| 20 | def format_number(value, high=False): |
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| 21 | """ |
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| 22 | Return a float in a standardized, human-readable formatted string |
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| 23 | """ |
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| 24 | try: |
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| 25 | value = float(value) |
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| 26 | except: |
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| 27 | output = "NaN" |
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| 28 | return output.lstrip().rstrip() |
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| 29 | |
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| 30 | if high: |
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| 31 | output = "%-6.4g" % value |
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| 32 | |
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| 33 | else: |
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| 34 | output = "%-5.3g" % value |
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| 35 | return output.lstrip().rstrip() |
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| 36 | |
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| 37 | |
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| 38 | class LinearFit(wx.Dialog): |
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| 39 | def __init__(self, parent, plottable, push_data, transform, title): |
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| 40 | """ |
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| 41 | Dialog window pops- up when select Linear fit on Context menu |
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| 42 | Displays fitting parameters |
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| 43 | """ |
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| 44 | wx.Dialog.__init__(self, parent, title=title, |
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| 45 | size=(PNL_WIDTH, 350)) |
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| 46 | self.parent = parent |
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| 47 | self.transform = transform |
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| 48 | # Font |
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| 49 | self.SetWindowVariant(variant=FONT_VARIANT) |
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| 50 | # Registered owner for close event |
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| 51 | self._registered_close = None |
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| 52 | |
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| 53 | # dialog panel self call function to plot the fitting function |
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| 54 | self.push_data = push_data |
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| 55 | # dialog self plottable |
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| 56 | self.plottable = plottable |
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| 57 | self.rg_on = False |
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| 58 | # Receive transformations of x and y |
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| 59 | self.xLabel, self.yLabel, self.Avalue, self.Bvalue, \ |
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| 60 | self.ErrAvalue, self.ErrBvalue, self.Chivalue = self.transform() |
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| 61 | |
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| 62 | # Dialog interface |
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| 63 | vbox = wx.BoxSizer(wx.VERTICAL) |
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| 64 | sizer = wx.GridBagSizer(5, 5) |
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| 65 | _BOX_WIDTH = 100 |
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| 66 | |
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| 67 | self.tcA = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, 20)) |
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| 68 | self.tcA.SetToolTipString("Fit value for the slope parameter.") |
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| 69 | self.tcErrA = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, 20)) |
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| 70 | self.tcErrA.SetToolTipString("Error on the slope parameter.") |
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| 71 | self.tcB = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, 20)) |
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| 72 | self.tcA.SetToolTipString("Fit value for the constant parameter.") |
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| 73 | self.tcErrB = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, 20)) |
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| 74 | self.tcErrB.SetToolTipString("Error on the constant parameter.") |
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| 75 | self.tcChi = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, 20)) |
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| 76 | self.tcChi.SetToolTipString("Chi^2 over degrees of freedom.") |
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| 77 | self.xminFit = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, 20)) |
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| 78 | msg = "Enter the minimum value on " |
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| 79 | msg += "the x-axis to be included in the fit." |
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| 80 | self.xminFit.SetToolTipString(msg) |
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| 81 | self.xmaxFit = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, 20)) |
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| 82 | msg = "Enter the maximum value on " |
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| 83 | msg += " the x-axis to be included in the fit." |
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| 84 | self.xmaxFit.SetToolTipString(msg) |
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| 85 | self.initXmin = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, 20)) |
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| 86 | msg = "Minimum value on the x-axis for the plotted data." |
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| 87 | self.initXmin.SetToolTipString(msg) |
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| 88 | self.initXmax = wx.TextCtrl(self, -1, size=(_BOX_WIDTH, 20)) |
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| 89 | msg = "Maximum value on the x-axis for the plotted data." |
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| 90 | self.initXmax.SetToolTipString(msg) |
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| 91 | |
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| 92 | # Make the info box not editable |
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| 93 | # _BACKGROUND_COLOR = '#ffdf85' |
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| 94 | _BACKGROUND_COLOR = self.GetBackgroundColour() |
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| 95 | self.initXmin.SetEditable(False) |
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| 96 | self.initXmin.SetBackgroundColour(_BACKGROUND_COLOR) |
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| 97 | self.initXmax.SetEditable(False) |
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| 98 | self.initXmax.SetBackgroundColour(_BACKGROUND_COLOR) |
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| 99 | |
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| 100 | # Buttons on the bottom |
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| 101 | self.bg_on = False |
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| 102 | self.static_line_1 = wx.StaticLine(self, -1) |
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| 103 | self.btFit = wx.Button(self, -1, 'Fit') |
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| 104 | self.btFit.Bind(wx.EVT_BUTTON, self._onFit) |
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| 105 | self.btFit.SetToolTipString("Perform fit.") |
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| 106 | self.btClose = wx.Button(self, wx.ID_CANCEL, 'Close') |
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| 107 | self.btClose.Bind(wx.EVT_BUTTON, self._on_close) |
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| 108 | if RG_ON: |
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| 109 | if (self.yLabel == "ln(y)" or self.yLabel == "ln(y*x)") and \ |
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| 110 | (self.xLabel == "x^(2)"): |
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| 111 | self.rg_on = True |
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| 112 | if (self.xLabel == "x^(4)") and (self.yLabel == "y*x^(4)"): |
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| 113 | self.bg_on = True |
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| 114 | # Intro |
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| 115 | explanation = "Perform fit for y(x) = ax + b" |
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| 116 | if self.bg_on: |
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| 117 | param_a = 'Background (= Parameter a)' |
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| 118 | else: |
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| 119 | param_a = 'Parameter a' |
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| 120 | vbox.Add(sizer) |
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| 121 | ix = 0 |
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| 122 | iy = 1 |
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| 123 | sizer.Add(wx.StaticText(self, -1, explanation), (iy, ix), |
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| 124 | (1, 1), wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 15) |
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| 125 | iy += 2 |
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| 126 | sizer.Add(wx.StaticText(self, -1, param_a), (iy, ix), |
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| 127 | (1, 1), wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 15) |
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| 128 | ix += 1 |
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| 129 | sizer.Add(self.tcA, (iy, ix), (1, 1), wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 130 | ix += 1 |
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| 131 | sizer.Add(wx.StaticText(self, -1, '+/-'), |
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| 132 | (iy, ix), (1, 1), wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 133 | ix += 1 |
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| 134 | sizer.Add(self.tcErrA, (iy, ix), (1, 1), |
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| 135 | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 136 | iy += 1 |
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| 137 | ix = 0 |
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| 138 | sizer.Add(wx.StaticText(self, -1, 'Parameter b'), (iy, ix), (1, 1), |
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| 139 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 15) |
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| 140 | ix += 1 |
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| 141 | sizer.Add(self.tcB, (iy, ix), (1, 1), wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 142 | ix += 1 |
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| 143 | sizer.Add(wx.StaticText(self, -1, '+/-'), (iy, ix), |
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| 144 | (1, 1), wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 145 | ix += 1 |
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| 146 | sizer.Add(self.tcErrB, (iy, ix), (1, 1), |
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| 147 | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 148 | iy += 1 |
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| 149 | ix = 0 |
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| 150 | sizer.Add(wx.StaticText(self, -1, 'Chi2/dof'), (iy, ix), (1, 1), |
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| 151 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 15) |
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| 152 | ix += 1 |
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| 153 | sizer.Add(self.tcChi, (iy, ix), (1, 1), wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 154 | iy += 2 |
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| 155 | ix = 1 |
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| 156 | sizer.Add(wx.StaticText(self, -1, 'Min'), (iy, ix), (1, 1), |
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| 157 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 158 | ix += 2 |
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| 159 | sizer.Add(wx.StaticText(self, -1, 'Max'), (iy, ix), |
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| 160 | (1, 1), wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 161 | |
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| 162 | iy += 1 |
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| 163 | ix = 0 |
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| 164 | sizer.Add(wx.StaticText(self, -1, 'Maximum range (linear scale)'), |
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| 165 | (iy, ix), (1, 1), |
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| 166 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 15) |
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| 167 | ix += 1 |
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| 168 | sizer.Add(self.initXmin, (iy, ix), (1, 1), |
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| 169 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 170 | ix += 2 |
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| 171 | sizer.Add(self.initXmax, (iy, ix), (1, 1), |
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| 172 | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 173 | |
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| 174 | iy += 1 |
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| 175 | ix = 0 |
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| 176 | sizer.Add(wx.StaticText(self, -1, 'Fit range of ' + self.xLabel), |
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| 177 | (iy, ix), (1, 1), |
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| 178 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 15) |
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| 179 | ix += 1 |
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| 180 | sizer.Add(self.xminFit, (iy, ix), (1, 1), |
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| 181 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 182 | ix += 2 |
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| 183 | sizer.Add(self.xmaxFit, (iy, ix), (1, 1), wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 184 | if self.rg_on: |
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| 185 | self.SetSize((PNL_WIDTH, PNL_HEIGHT)) |
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| 186 | I0_stxt = wx.StaticText(self, -1, 'I(q=0)') |
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| 187 | self.I0_tctr = wx.TextCtrl(self, -1, '') |
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| 188 | self.I0_tctr.SetEditable(False) |
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| 189 | self.I0_tctr.SetBackgroundColour(_BACKGROUND_COLOR) |
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| 190 | self.I0err_tctr = wx.TextCtrl(self, -1, '') |
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| 191 | self.I0err_tctr.SetEditable(False) |
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| 192 | self.I0err_tctr.SetBackgroundColour(_BACKGROUND_COLOR) |
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| 193 | Rg_stxt = wx.StaticText(self, -1, 'Rg [A]') |
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| 194 | Rg_stxt.Show(self.yLabel == "ln(y)") |
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| 195 | self.Rg_tctr = wx.TextCtrl(self, -1, '') |
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| 196 | self.Rg_tctr.SetEditable(False) |
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| 197 | self.Rg_tctr.SetBackgroundColour(_BACKGROUND_COLOR) |
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| 198 | self.Rg_tctr.Show(self.yLabel == "ln(y)") |
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| 199 | self.Rgerr_tctr = wx.TextCtrl(self, -1, '') |
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| 200 | self.Rgerr_tctr.SetEditable(False) |
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| 201 | self.Rgerr_tctr.SetBackgroundColour(_BACKGROUND_COLOR) |
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| 202 | self.Rgerr_tctr.Show(self.yLabel == "ln(y)") |
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| 203 | self.Rgerr_pm = wx.StaticText(self, -1, '+/-') |
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| 204 | self.Rgerr_pm.Show(self.yLabel == "ln(y)") |
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| 205 | Diameter_stxt = wx.StaticText(self, -1, 'Rod Diameter [A]') |
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| 206 | Diameter_stxt.Show(self.yLabel == "ln(y*x)") |
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| 207 | self.Diameter_tctr = wx.TextCtrl(self, -1, '') |
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| 208 | self.Diameter_tctr.SetEditable(False) |
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| 209 | self.Diameter_tctr.SetBackgroundColour(_BACKGROUND_COLOR) |
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| 210 | self.Diameter_tctr.Show(self.yLabel == "ln(y*x)") |
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| 211 | self.Diameter_pm = wx.StaticText(self, -1, '+/-') |
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| 212 | self.Diameter_pm.Show(self.yLabel == "ln(y*x)") |
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| 213 | self.Diametererr_tctr = wx.TextCtrl(self, -1, '') |
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| 214 | self.Diametererr_tctr.SetEditable(False) |
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| 215 | self.Diametererr_tctr.SetBackgroundColour(_BACKGROUND_COLOR) |
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| 216 | self.Diametererr_tctr.Show(self.yLabel == "ln(y*x)") |
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| 217 | RgQmin_stxt = wx.StaticText(self, -1, 'Rg*Qmin') |
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| 218 | self.RgQmin_tctr = wx.TextCtrl(self, -1, '') |
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| 219 | self.RgQmin_tctr.SetEditable(False) |
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| 220 | self.RgQmin_tctr.SetBackgroundColour(_BACKGROUND_COLOR) |
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| 221 | RgQmax_stxt = wx.StaticText(self, -1, 'Rg*Qmax') |
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| 222 | self.RgQmax_tctr = wx.TextCtrl(self, -1, '') |
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| 223 | self.RgQmax_tctr.SetEditable(False) |
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| 224 | self.RgQmax_tctr.SetBackgroundColour(_BACKGROUND_COLOR) |
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| 225 | |
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| 226 | iy += 2 |
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| 227 | ix = 0 |
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| 228 | sizer.Add(I0_stxt, (iy, ix), (1, 1), |
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| 229 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 15) |
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| 230 | ix += 1 |
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| 231 | sizer.Add(self.I0_tctr, (iy, ix), (1, 1), |
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| 232 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 233 | ix += 1 |
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| 234 | sizer.Add(wx.StaticText(self, -1, '+/-'), (iy, ix), |
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| 235 | (1, 1), wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 236 | ix += 1 |
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| 237 | sizer.Add(self.I0err_tctr, (iy, ix), (1, 1), |
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| 238 | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 239 | |
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| 240 | iy += 1 |
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| 241 | ix = 0 |
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| 242 | sizer.Add(Rg_stxt, (iy, ix), (1, 1), |
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| 243 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 15) |
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| 244 | ix += 1 |
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| 245 | sizer.Add(self.Rg_tctr, (iy, ix), (1, 1), |
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| 246 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 247 | |
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| 248 | ix += 1 |
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| 249 | sizer.Add(self.Rgerr_pm, (iy, ix), |
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| 250 | (1, 1), wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 251 | ix += 1 |
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| 252 | sizer.Add(self.Rgerr_tctr, (iy, ix), (1, 1), |
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| 253 | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 254 | iy += 1 |
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| 255 | ix = 0 |
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| 256 | sizer.Add(Diameter_stxt, (iy, ix), (1, 1), |
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| 257 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 15) |
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| 258 | ix += 1 |
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| 259 | sizer.Add(self.Diameter_tctr, (iy, ix), (1, 1), |
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| 260 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 261 | |
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| 262 | ix += 1 |
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| 263 | sizer.Add(self.Diameter_pm, (iy, ix), |
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| 264 | (1, 1), wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 265 | ix += 1 |
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| 266 | sizer.Add(self.Diametererr_tctr, (iy, ix), (1, 1), |
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| 267 | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 268 | iy += 1 |
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| 269 | ix = 0 |
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| 270 | sizer.Add(RgQmin_stxt, (iy, ix), (1, 1), |
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| 271 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 15) |
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| 272 | ix += 1 |
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| 273 | sizer.Add(self.RgQmin_tctr, (iy, ix), (1, 1), |
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| 274 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 275 | iy += 1 |
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| 276 | ix = 0 |
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| 277 | sizer.Add(RgQmax_stxt, (iy, ix), (1, 1), |
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| 278 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 15) |
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| 279 | ix += 1 |
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| 280 | sizer.Add(self.RgQmax_tctr, (iy, ix), (1, 1), |
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| 281 | wx.LEFT | wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 282 | |
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| 283 | iy += 1 |
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| 284 | ix = 1 |
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| 285 | |
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| 286 | vbox.Add(self.static_line_1, 0, wx.EXPAND, 0) |
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| 287 | sizer_button = wx.BoxSizer(wx.HORIZONTAL) |
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| 288 | sizer_button.Add((20, 20), 1, wx.EXPAND | wx.ADJUST_MINSIZE, 0) |
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| 289 | sizer_button.Add(self.btFit, 0, wx.LEFT | wx.RIGHT | wx.ADJUST_MINSIZE, 10) |
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| 290 | sizer_button.Add(self.btClose, 0, |
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| 291 | wx.LEFT | wx.RIGHT | wx.ADJUST_MINSIZE, 10) |
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| 292 | vbox.Add(sizer_button, 0, wx.EXPAND | wx.BOTTOM | wx.TOP, 10) |
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| 293 | |
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| 294 | sizer.Add(self.btFit, (iy, ix), (1, 1), wx.LEFT | wx.ADJUST_MINSIZE, 0) |
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| 295 | # panel.SetSizer(sizer) |
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| 296 | self.SetSizer(vbox) |
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| 297 | self.Centre() |
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| 298 | # Receives the type of model for the fitting |
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| 299 | from LineModel import LineModel |
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| 300 | self.model = LineModel() |
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| 301 | # Display the fittings values |
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| 302 | self.default_A = self.model.getParam('A') |
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| 303 | self.default_B = self.model.getParam('B') |
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| 304 | self.cstA = fittings.Parameter(self.model, 'A', self.default_A) |
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| 305 | self.cstB = fittings.Parameter(self.model, 'B', self.default_B) |
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| 306 | |
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| 307 | # Set default value of parameter in fit dialog |
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| 308 | if self.Avalue == None: |
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| 309 | self.tcA.SetValue(format_number(self.default_A)) |
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| 310 | else: |
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| 311 | self.tcA.SetLabel(format_number(self.Avalue)) |
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| 312 | if self.Bvalue == None: |
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| 313 | self.tcB.SetValue(format_number(self.default_B)) |
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| 314 | else: |
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| 315 | self.tcB.SetLabel(format_number(self.Bvalue)) |
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| 316 | if self.ErrAvalue == None: |
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| 317 | self.tcErrA.SetLabel(format_number(0.0)) |
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| 318 | else: |
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| 319 | self.tcErrA.SetLabel(format_number(self.ErrAvalue)) |
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| 320 | if self.ErrBvalue == None: |
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| 321 | self.tcErrB.SetLabel(format_number(0.0)) |
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| 322 | else: |
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| 323 | self.tcErrB.SetLabel(format_number(self.ErrBvalue)) |
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| 324 | if self.Chivalue == None: |
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| 325 | self.tcChi.SetLabel(format_number(0.0)) |
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| 326 | else: |
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| 327 | self.tcChi.SetLabel(format_number(self.Chivalue)) |
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| 328 | if self.plottable.x != []: |
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| 329 | # store the values of View in self.x,self.y,self.dx,self.dy |
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| 330 | self.x, self.y, self.dx, \ |
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| 331 | self.dy = self.plottable.returnValuesOfView() |
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| 332 | try: |
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| 333 | self.mini = self.floatForwardTransform(min(self.x)) |
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| 334 | except: |
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| 335 | self.mini = "Invalid" |
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| 336 | try: |
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| 337 | self.maxi = self.floatForwardTransform(max(self.x)) |
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| 338 | except: |
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| 339 | self.maxi = "Invalid" |
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| 340 | |
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| 341 | self.initXmin.SetValue(format_number(min(self.plottable.x))) |
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| 342 | self.initXmax.SetValue(format_number(max(self.plottable.x))) |
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| 343 | self.mini = min(self.x) |
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| 344 | self.maxi = max(self.x) |
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| 345 | self.xminFit.SetValue(format_number(self.mini)) |
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| 346 | self.xmaxFit.SetValue(format_number(self.maxi)) |
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| 347 | |
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| 348 | def register_close(self, owner): |
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| 349 | """ |
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| 350 | Method to register the close event to a parent |
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| 351 | window that needs notification when the dialog |
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| 352 | is closed |
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| 353 | |
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| 354 | :param owner: parent window |
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| 355 | |
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| 356 | """ |
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| 357 | self._registered_close = owner |
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| 358 | |
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| 359 | def _on_close(self, event): |
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| 360 | """ |
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| 361 | Close event. |
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| 362 | Notify registered owner if available. |
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| 363 | """ |
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| 364 | event.Skip() |
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| 365 | if self._registered_close is not None: |
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| 366 | self._registered_close() |
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| 367 | |
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| 368 | def _onFit(self, event): |
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| 369 | """ |
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| 370 | Performs the fit. Receive an event when clicking on |
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| 371 | the button Fit.Computes chisqr , |
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| 372 | A and B parameters of the best linear fit y=Ax +B |
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| 373 | Push a plottable to |
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| 374 | """ |
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| 375 | tempx = [] |
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| 376 | tempy = [] |
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| 377 | tempdy = [] |
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| 378 | |
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| 379 | # Check if View contains a x array .we online fit when x exits |
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| 380 | # makes transformation for y as a line to fit |
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| 381 | if self.x != []: |
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| 382 | if self.checkFitValues(self.xminFit) == True: |
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| 383 | # Check if the field of Fit Dialog contain values |
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| 384 | # and use the x max and min of the user |
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| 385 | if not self._checkVal(self.xminFit, self.xmaxFit): |
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| 386 | return |
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| 387 | xminView = float(self.xminFit.GetValue()) |
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| 388 | xmaxView = float(self.xmaxFit.GetValue()) |
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| 389 | xmin = xminView |
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| 390 | xmax = xmaxView |
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| 391 | # Store the transformed values of view x, y,dy |
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| 392 | # in variables before the fit |
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| 393 | if self.yLabel.lower() == "log10(y)": |
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| 394 | if self.xLabel.lower() == "log10(x)": |
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| 395 | for i in range(len(self.x)): |
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| 396 | if self.x[i] >= math.log10(xmin): |
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| 397 | tempy.append(math.log10(self.y[i])) |
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| 398 | tempdy.append(transform.errToLogX(self.y[i], 0, self.dy[i], 0)) |
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| 399 | else: |
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| 400 | for i in range(len(self.y)): |
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| 401 | tempy.append(math.log10(self.y[i])) |
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| 402 | tempdy.append(transform.errToLogX(self.y[i], 0, self.dy[i], 0)) |
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| 403 | else: |
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| 404 | tempy = self.y |
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| 405 | tempdy = self.dy |
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| 406 | |
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| 407 | if self.xLabel.lower() == "log10(x)": |
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| 408 | for x_i in self.x: |
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| 409 | if x_i >= math.log10(xmin): |
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| 410 | tempx.append(math.log10(x_i)) |
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| 411 | else: |
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| 412 | tempx = self.x |
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| 413 | |
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| 414 | # Find the fitting parameters |
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| 415 | # Always use the same defaults, so that fit history |
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| 416 | # doesn't play a role! |
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| 417 | self.cstA = fittings.Parameter(self.model, 'A', self.default_A) |
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| 418 | self.cstB = fittings.Parameter(self.model, 'B', self.default_B) |
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| 419 | |
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| 420 | if self.xLabel.lower() == "log10(x)": |
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| 421 | tempdy = numpy.asarray(tempdy) |
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| 422 | tempdy[tempdy == 0] = 1 |
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| 423 | chisqr, out, cov = fittings.sasfit(self.model, |
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| 424 | [self.cstA, self.cstB], |
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| 425 | tempx, tempy, |
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| 426 | tempdy, |
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| 427 | math.log10(xmin), |
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| 428 | math.log10(xmax)) |
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| 429 | else: |
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| 430 | tempdy = numpy.asarray(tempdy) |
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| 431 | tempdy[tempdy == 0] = 1 |
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| 432 | chisqr, out, cov = fittings.sasfit(self.model, |
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| 433 | [self.cstA, self.cstB], |
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| 434 | tempx, tempy, tempdy, |
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| 435 | xminView, xmaxView) |
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| 436 | # Use chi2/dof |
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| 437 | if len(tempx) > 0: |
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| 438 | chisqr = chisqr / len(tempx) |
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| 439 | |
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| 440 | # Check that cov and out are iterable before displaying them |
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| 441 | if cov == None: |
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| 442 | errA = 0.0 |
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| 443 | errB = 0.0 |
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| 444 | else: |
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| 445 | errA = math.sqrt(cov[0][0]) |
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| 446 | errB = math.sqrt(cov[1][1]) |
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| 447 | if out == None: |
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| 448 | cstA = 0.0 |
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| 449 | cstB = 0.0 |
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| 450 | else: |
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| 451 | cstA = out[0] |
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| 452 | cstB = out[1] |
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| 453 | # Reset model with the right values of A and B |
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| 454 | self.model.setParam('A', float(cstA)) |
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| 455 | self.model.setParam('B', float(cstB)) |
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| 456 | |
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| 457 | tempx = [] |
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| 458 | tempy = [] |
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| 459 | y_model = 0.0 |
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| 460 | # load tempy with the minimum transformation |
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| 461 | |
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| 462 | if self.xLabel == "log10(x)": |
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| 463 | y_model = self.model.run(math.log10(xmin)) |
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| 464 | tempx.append(xmin) |
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| 465 | else: |
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| 466 | y_model = self.model.run(xminView) |
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| 467 | tempx.append(xminView) |
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| 468 | |
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| 469 | if self.yLabel == "log10(y)": |
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| 470 | tempy.append(math.pow(10, y_model)) |
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| 471 | else: |
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| 472 | tempy.append(y_model) |
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| 473 | |
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| 474 | # load tempy with the maximum transformation |
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| 475 | if self.xLabel == "log10(x)": |
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| 476 | y_model = self.model.run(math.log10(xmax)) |
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| 477 | tempx.append(xmax) |
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| 478 | else: |
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| 479 | y_model = self.model.run(xmaxView) |
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| 480 | tempx.append(xmaxView) |
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| 481 | |
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| 482 | if self.yLabel == "log10(y)": |
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| 483 | tempy.append(math.pow(10, y_model)) |
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| 484 | else: |
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| 485 | tempy.append(y_model) |
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| 486 | # Set the fit parameter display when FitDialog is opened again |
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| 487 | self.Avalue = cstB |
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| 488 | self.Bvalue = cstA |
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| 489 | self.ErrAvalue = errA |
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| 490 | self.ErrBvalue = errB |
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| 491 | self.Chivalue = chisqr |
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| 492 | self.push_data(tempx, tempy, xminView, xmaxView, |
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| 493 | xmin, xmax, self._ongetValues()) |
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| 494 | |
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| 495 | # Display the fitting value on the Fit Dialog |
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| 496 | self._onsetValues(cstB, cstA, errA, errB, chisqr) |
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| 497 | |
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| 498 | def _onsetValues(self, cstA, cstB, errA, errB, Chi): |
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| 499 | """ |
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| 500 | Display the value on fit Dialog |
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| 501 | """ |
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| 502 | rg = None |
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| 503 | self.tcA.SetValue(format_number(cstA)) |
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| 504 | self.tcB.SetValue(format_number(cstB)) |
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| 505 | self.tcErrA.SetValue(format_number(errA)) |
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| 506 | self.tcErrB.SetValue(format_number(errB)) |
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| 507 | self.tcChi.SetValue(format_number(Chi)) |
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| 508 | if self.rg_on: |
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| 509 | if self.Rg_tctr.IsShown(): |
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| 510 | rg = numpy.sqrt(-3 * float(cstA)) |
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| 511 | value = format_number(rg) |
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| 512 | self.Rg_tctr.SetValue(value) |
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| 513 | if self.I0_tctr.IsShown(): |
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| 514 | val = numpy.exp(cstB) |
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| 515 | self.I0_tctr.SetValue(format_number(val)) |
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| 516 | if self.Rgerr_tctr.IsShown(): |
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| 517 | if rg != None and rg != 0: |
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| 518 | value = format_number(3 * float(cstA) / (2 * rg)) |
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| 519 | else: |
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| 520 | value = '' |
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| 521 | self.Rgerr_tctr.SetValue(value) |
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| 522 | if self.I0err_tctr.IsShown(): |
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| 523 | val = numpy.abs(numpy.exp(cstB) - numpy.exp(cstB + errB)) |
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| 524 | self.I0err_tctr.SetValue(format_number(val)) |
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| 525 | if self.Diameter_tctr.IsShown(): |
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| 526 | rg = 4 * numpy.sqrt(-float(cstA)) |
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| 527 | value = format_number(rg) |
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| 528 | self.Diameter_tctr.SetValue(value) |
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| 529 | if self.Diametererr_tctr.IsShown(): |
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| 530 | if rg != None and rg != 0: |
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| 531 | value = format_number(8 * float(cstA) / rg) |
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| 532 | else: |
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| 533 | value = '' |
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| 534 | self.Diametererr_tctr.SetValue(value) |
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| 535 | if self.RgQmin_tctr.IsShown(): |
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| 536 | value = format_number(rg * self.mini) |
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| 537 | self.RgQmin_tctr.SetValue(value) |
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| 538 | if self.RgQmax_tctr.IsShown(): |
|---|
| 539 | value = format_number(rg * self.maxi) |
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| 540 | self.RgQmax_tctr.SetValue(value) |
|---|
| 541 | |
|---|
| 542 | def _ongetValues(self): |
|---|
| 543 | """ |
|---|
| 544 | Display the value on fit Dialog |
|---|
| 545 | """ |
|---|
| 546 | return self.Avalue, self.Bvalue, self.ErrAvalue, \ |
|---|
| 547 | self.ErrBvalue, self.Chivalue |
|---|
| 548 | |
|---|
| 549 | def _checkVal(self, usermin, usermax): |
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| 550 | """ |
|---|
| 551 | Ensure that fields parameter contains a min and a max value |
|---|
| 552 | within x min and x max range |
|---|
| 553 | """ |
|---|
| 554 | self.mini = float(self.xminFit.GetValue()) |
|---|
| 555 | self.maxi = float(self.xmaxFit.GetValue()) |
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| 556 | flag = True |
|---|
| 557 | try: |
|---|
| 558 | mini = float(usermin.GetValue()) |
|---|
| 559 | maxi = float(usermax.GetValue()) |
|---|
| 560 | if mini < maxi: |
|---|
| 561 | usermin.SetBackgroundColour(wx.WHITE) |
|---|
| 562 | usermin.Refresh() |
|---|
| 563 | else: |
|---|
| 564 | flag = False |
|---|
| 565 | usermin.SetBackgroundColour("pink") |
|---|
| 566 | usermin.Refresh() |
|---|
| 567 | except: |
|---|
| 568 | # Check for possible values entered |
|---|
| 569 | flag = False |
|---|
| 570 | usermin.SetBackgroundColour("pink") |
|---|
| 571 | usermin.Refresh() |
|---|
| 572 | |
|---|
| 573 | return flag |
|---|
| 574 | |
|---|
| 575 | def floatForwardTransform(self, x): |
|---|
| 576 | """ |
|---|
| 577 | transform a float. |
|---|
| 578 | """ |
|---|
| 579 | # TODO: refactor this with proper object-oriented design |
|---|
| 580 | # This code stinks. |
|---|
| 581 | if self.xLabel == "x": |
|---|
| 582 | return transform.toX(x) |
|---|
| 583 | if self.xLabel == "x^(2)": |
|---|
| 584 | return transform.toX2(x) |
|---|
| 585 | if self.xLabel == "ln(x)": |
|---|
| 586 | return transform.toLogX(x) |
|---|
| 587 | if self.xLabel == "log10(x)": |
|---|
| 588 | return math.log10(x) |
|---|
| 589 | |
|---|
| 590 | def floatTransform(self, x): |
|---|
| 591 | """ |
|---|
| 592 | transform a float.It is use to determine the x. |
|---|
| 593 | View min and x.View max for values |
|---|
| 594 | not in x |
|---|
| 595 | """ |
|---|
| 596 | # TODO: refactor this with proper object-oriented design |
|---|
| 597 | # This code stinks. |
|---|
| 598 | if self.xLabel == "x": |
|---|
| 599 | return transform.toX(x) |
|---|
| 600 | if self.xLabel == "x^(2)": |
|---|
| 601 | return transform.toX2(x) |
|---|
| 602 | if self.xLabel == "ln(x)": |
|---|
| 603 | return transform.toLogX(x) |
|---|
| 604 | if self.xLabel == "log10(x)": |
|---|
| 605 | if x > 0: |
|---|
| 606 | return x |
|---|
| 607 | else: |
|---|
| 608 | raise ValueError, "cannot compute log of a negative number" |
|---|
| 609 | |
|---|
| 610 | def floatInvTransform(self, x): |
|---|
| 611 | """ |
|---|
| 612 | transform a float.It is use to determine the x.View min and x.View |
|---|
| 613 | max for values not in x |
|---|
| 614 | |
|---|
| 615 | """ |
|---|
| 616 | # TODO: refactor this. This is just a hack to make the |
|---|
| 617 | # functionality work without rewritting the whole code |
|---|
| 618 | # with good design (which really should be done...). |
|---|
| 619 | if self.xLabel == "x^(2)": |
|---|
| 620 | return math.sqrt(x) |
|---|
| 621 | elif self.xLabel == "log10(x)": |
|---|
| 622 | return math.pow(10, x) |
|---|
| 623 | elif self.xLabel == "ln(x)": |
|---|
| 624 | return math.exp(x) |
|---|
| 625 | return x |
|---|
| 626 | |
|---|
| 627 | def checkFitValues(self, item): |
|---|
| 628 | """ |
|---|
| 629 | Check the validity of input values |
|---|
| 630 | """ |
|---|
| 631 | flag = True |
|---|
| 632 | value = item.GetValue() |
|---|
| 633 | # Check for possible values entered |
|---|
| 634 | if self.xLabel == "log10(x)": |
|---|
| 635 | if float(value) > 0: |
|---|
| 636 | item.SetBackgroundColour(wx.WHITE) |
|---|
| 637 | item.Refresh() |
|---|
| 638 | else: |
|---|
| 639 | flag = False |
|---|
| 640 | item.SetBackgroundColour("pink") |
|---|
| 641 | item.Refresh() |
|---|
| 642 | return flag |
|---|
| 643 | |
|---|
| 644 | def setFitRange(self, xmin, xmax, xminTrans, xmaxTrans): |
|---|
| 645 | """ |
|---|
| 646 | Set fit parameters |
|---|
| 647 | """ |
|---|
| 648 | self.xminFit.SetValue(format_number(xmin)) |
|---|
| 649 | self.xmaxFit.SetValue(format_number(xmax)) |
|---|
| 650 | |
|---|
| 651 | def set_fit_region(self, xmin, xmax): |
|---|
| 652 | """ |
|---|
| 653 | Set the fit region |
|---|
| 654 | :param xmin: minimum x-value to be included in fit |
|---|
| 655 | :param xmax: maximum x-value to be included in fit |
|---|
| 656 | """ |
|---|
| 657 | # Check values |
|---|
| 658 | try: |
|---|
| 659 | float(xmin) |
|---|
| 660 | float(xmax) |
|---|
| 661 | except: |
|---|
| 662 | msg = "LinearFit.set_fit_region: fit range must be floats" |
|---|
| 663 | raise ValueError, msg |
|---|
| 664 | self.xminFit.SetValue(format_number(xmin)) |
|---|
| 665 | self.xmaxFit.SetValue(format_number(xmax)) |
|---|
| 666 | |
|---|
| 667 | |
|---|
| 668 | class MyApp(wx.App): |
|---|
| 669 | """ |
|---|
| 670 | Test application |
|---|
| 671 | """ |
|---|
| 672 | def OnInit(self): |
|---|
| 673 | """ |
|---|
| 674 | Test application initialization |
|---|
| 675 | """ |
|---|
| 676 | wx.InitAllImageHandlers() |
|---|
| 677 | plot = Theory1D([], []) |
|---|
| 678 | dialog = LinearFit(parent=None, plottable=plot, |
|---|
| 679 | push_data=self.onFitDisplay, |
|---|
| 680 | transform=self.returnTrans, |
|---|
| 681 | title='Linear Fit') |
|---|
| 682 | if dialog.ShowModal() == wx.ID_OK: |
|---|
| 683 | pass |
|---|
| 684 | dialog.Destroy() |
|---|
| 685 | return 1 |
|---|
| 686 | |
|---|
| 687 | def onFitDisplay(self, tempx, tempy, xminView, xmaxView, xmin, xmax, func): |
|---|
| 688 | """ |
|---|
| 689 | Test application dummy method |
|---|
| 690 | """ |
|---|
| 691 | pass |
|---|
| 692 | |
|---|
| 693 | def returnTrans(self): |
|---|
| 694 | """ |
|---|
| 695 | Test application dummy method |
|---|
| 696 | """ |
|---|
| 697 | return '', '', 0, 0, 0, 0, 0 |
|---|
