double ConnectivityMeasures::calcPearsonsCorrelationCoeff(const Eigen::RowVectorXd &vecFirst, const Eigen::RowVectorXd &vecSecond)
{
    if(vecFirst.cols() != vecSecond.cols()) {
        qDebug() << "ConnectivityMeasures::calcPearsonsCorrelationCoeff - Vectors length do not match!";
    }

    return (vecFirst.dot(vecSecond))/vecFirst.cols();
}