// Calculate Gaussian N[0,1] order statistic medians
this.gaussianOrderMedians = Stat.gaussianOrderStatisticMedians(this.nData);
// calculate the correlation coefficient of the probability plot for the untransformed data
Regression reg = new Regression(this.gaussianOrderMedians, ((new ArrayMaths(this.standardizedOriginalData)).sort().array()));
reg.linear();
this.originalSampleR = reg.getSampleR();
double[] coeff = reg.getBestEstimates();
this.originalIntercept = coeff[0];
this.originalGradient = coeff[1];
coeff = reg.getBestEstimatesErrors();