public static double std(FlatDataCollection flatDataCollection, boolean isSample) {
        double variance = variance(flatDataCollection, isSample);
        double std = Math.sqrt(variance);
        
        return std;
    }
public static double std ( FlatDataCollection flatDataCollection , boolean isSample ) { double variance = variance ( flatDataCollection , isSample ) ; double std = Math . sqrt ( variance ) ; return std ; }
Calculates the Standard Deviation

@param flatDataCollection
@param isSample
@return