39 lines
893 B
C++
39 lines
893 B
C++
#include "../rng.h"
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#include "./rngtest.h"
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#include "./runs.h"
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namespace splat {
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runs_test::runs_test(std::vector<std::bitset<32>> &testData) : RNGTEST(testData) {
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testPValue = runTest(data);
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testPassed = testPValue > 0.01;
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}
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std::string runs_test::getName(){
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return "Runs";
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}
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double runs_test::runTest(std::vector<std::bitset<32>> &data) {
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long long totalSize = data.size() * 32;
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double vnobs = 1;
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double onesproportion = 0;
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for(int i=0; i<totalSize-1; i++){
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if(data[i/32][i%32]!=data[(i+1)/32][(i+1)%32]){
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vnobs++;
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}
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onesproportion+=data[i/32][i%32];
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}
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onesproportion/=totalSize;
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return std::erfc(
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std::abs(vnobs-(2*totalSize*onesproportion*(1-onesproportion)))
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/
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(2*std::sqrt(2*totalSize)*onesproportion*(1-onesproportion))
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);
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}
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}
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