+++ /dev/null
-/*
- * shannon.cpp
- * Dotur
- *
- * Created by Sarah Westcott on 1/7/09.
- * Copyright 2009 Schloss Lab UMASS Amherst. All rights reserved.
- *
- */
-
-#include "shannon.h"
-
-/***********************************************************************/
-
-EstOutput Shannon::getValues(SAbundVector* rank){
- try {
- //vector<double> shannonData(3,0);
- data.resize(3,0);
-
- double shannon = 0.0000; //hprime
- double hvara=0.0000;
-
- double maxRank = rank->getMaxRank();
- int sampled = rank->getNumSeqs();
- int sobs = rank->getNumBins();
-
- for(int i=1;i<=maxRank;i++){
- double p = ((double) i)/((double)sampled);
- shannon += (double)rank->get(i)*p*log(p); //hprime
- hvara += (double)rank->get(i)*p*pow(log(p),2);
- }
- shannon = -shannon;
-
- double hvar = (hvara-pow(shannon,2))/(double)sampled+(double)(sobs-1)/(double)(2*sampled*sampled);
-
- double ci = 0;
-
- if(hvar>0){
- ci = 1.96*pow(hvar,0.5);
- }
-
- double shannonhci = shannon + ci;
- double shannonlci = shannon - ci;
-
- data[0] = shannon;
- data[1] = shannonlci;
- data[2] = shannonhci;
-
- if (isnan(data[0]) || isinf(data[0])) { data[0] = 0; }
- if (isnan(data[1]) || isinf(data[1])) { data[1] = 0; }
- if (isnan(data[2]) || isinf(data[2])) { data[2] = 0; }
-
- return data;
- }
- catch(exception& e) {
- m->errorOut(e, "Shannon", "getValues");
- exit(1);
- }
-}
-
-/***********************************************************************/