1 | # $Id: tallyData.py,v 1.2 2003/06/16 17:06:44 dressel Exp $ |
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2 | # ------------------------------------------------------------------- |
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3 | # GEANT4 tag $Name: $ |
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4 | # ------------------------------------------------------------------- |
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5 | # |
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6 | |
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7 | class MeasureData: |
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8 | def __init__(self, entries, mean, sum, sumSquared, variance): |
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9 | self.entries = entries |
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10 | self.mean = mean |
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11 | self.sum = sum |
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12 | self.sumSquared = sumSquared |
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13 | self.variance = variance |
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14 | |
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15 | def __iadd__(self,m): |
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16 | self.entries += m.entries |
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17 | self.sum += m.sum |
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18 | self.sumSquared += m.sumSquared |
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19 | self.mean = self.getMean() |
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20 | self.variance = self.getVariance() |
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21 | return self |
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22 | |
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23 | def __add__(self,b): |
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24 | c = MeasureData(self.entries, |
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25 | self.mean, |
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26 | self.sum, |
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27 | self.sumSquared, |
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28 | self.variance) |
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29 | c+=b |
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30 | return c |
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31 | |
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32 | def getMean(self): |
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33 | return 1.0 * self.sum / self.entries |
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34 | |
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35 | def getVariance(self): |
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36 | n = 0 |
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37 | f = 0 |
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38 | if self.entries > 1: |
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39 | mean = self.getMean() |
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40 | n = 1.0 * self.entries/(self.entries -1) |
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41 | f = 1.0 * self.sumSquared/self.entries - mean*mean |
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42 | return n * f |
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43 | |
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44 | |
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45 | |
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46 | class TallyData: |
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47 | def __init__(self, binEdges, measures): |
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48 | self.binEdges = binEdges |
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49 | self.measures = measures |
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50 | |
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51 | def addMeasures(self, tally): |
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52 | if tally.binEdges != self.binEdges: |
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53 | print "TallyData.addMeasures: tally.binEdges != self.binEdges" |
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54 | else: |
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55 | for i in range(len(self.measures)): |
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56 | self.measures[i] += tally.measures[i] |
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57 | |
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58 | |
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59 | |
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60 | |
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61 | |
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62 | def createTallyDat(tally): |
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63 | measures = [] |
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64 | for i in range(tally.size()): |
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65 | m = tally.measure(i) |
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66 | measures.append(MeasureData(m.GetEntries(), |
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67 | m.GetMean(), |
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68 | m.GetSum(), |
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69 | m.GetSumSquared(), |
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70 | m.GetVariance())) |
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71 | t = TallyData(tally.binEdges(), measures) |
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72 | return t |
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