| 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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