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Utils
RunningSum.h
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#ifndef RUNNING_SUM_H_
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#define RUNNING_SUM_H_
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class
RunningSum
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{
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public
:
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RunningSum
(
double
decayConstant) :
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decayConstant(decayConstant), runningSum(0)
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{
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}
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double
UpdateSum
(
double
x)
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{
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runningSum *= decayConstant;
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runningSum += x;
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return
runningSum * (1 - decayConstant);
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}
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void
Clear
()
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{
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runningSum = 0;
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}
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void
setDecayConstant
(
double
decayConstant)
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{
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this->decayConstant = decayConstant;
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}
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private
:
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double
decayConstant;
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double
runningSum;
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};
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#endif
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