public static double quantile(double x,double mu,double sigma){
  return Math.exp(mu + sigma * NormalDistribution.standardNormalQuantile(x));
}

public static double quantile ( double x , double mu , double sigma ) { return Math . exp ( mu + sigma * NormalDistribution . standardNormalQuantile ( x ) ) ; }
inverse cumulative probability density function ( probit ) of a normal distribution .
