QFD2/QFD/algorithm/ZScore.cpp

#include "ZScore.h"
#include "MathUtil.h"

ZScore::ZScore(const QVector<ZScore::EvaluateIndex> &rMat) : originMat(rMat)
{
    calcZScoreMat();
}

const QVector<ZScore::EvaluateIndex> &ZScore::zScoreResult()
{
    return zScoreMat;
}

ZScore::Relations ZScore::getRelations() const
{
    //没计算
    return Relations();
}

void ZScore::calcZScoreMat()
{
    if (originMat.count() == 0 || originMat[0].count() == 0) {
        return;
    }

    for (auto index : originMat) {
        std::pair<double, double> rst = Helper::meanAndStandardDeviation(index);

        ZScore::EvaluateIndex zs;
        for (auto v : index) {
            zs << (v - rst.first) / rst.second;
        }

        zScoreMat << zs;
    }
}