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/*
* sharedthetan.cpp
* Dotur
*
* Created by Sarah Westcott on 1/8/09.
* Copyright 2009 Schloss Lab UMASS Amherst. All rights reserved.
*
*/
#include "sharedthetan.h"
/***********************************************************************/
EstOutput ThetaN::getValues(vector<SharedRAbundVector*> shared) {
try {
data.resize(1,0);
double Atotal, Btotal, tempA, tempB;
Atotal = 0; Btotal = 0;
double numerator, denominator, thetaN, sumSharedA, sumSharedB, a, b, d;
numerator = 0.0; denominator = 0.0; thetaN = 0.0; sumSharedA = 0.0; sumSharedB = 0.0; a = 0.0; b = 0.0; d = 0.0;
//get the total values we need to calculate the theta denominator sums
for (int i = 0; i < shared[0]->getNumBins(); i++) {
//store in temps to avoid multiple repetitive function calls
Atotal += shared[0]->get(i);
Btotal += shared[1]->get(i);
}
//calculate the theta denominator sums
for (int j = 0; j < shared[0]->getNumBins(); j++) {
//store in temps to avoid multiple repetitive function calls
tempA = shared[0]->get(j);
tempB = shared[1]->get(j);
//they are shared
if (!util.isEqual(tempA, 0) && !util.isEqual(tempB, 0)) {
if (!util.isEqual(Atotal, 0)) { sumSharedA = (tempA / (float)Atotal); }
if (!util.isEqual(Btotal, 0)) { sumSharedB = (tempB / (float)Btotal); }
a += sumSharedA;
b += sumSharedB;
}
}
thetaN = (a * b) / (a + b - (a * b));
if (isnan(thetaN) || isinf(thetaN)) { thetaN = 0; }
data[0] = 1.0 - thetaN;
return data;
}
catch(exception& e) {
m->errorOut(e, "ThetaN", "getValues");
exit(1);
}
}
/***********************************************************************/
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