Java Utililty Methods Standard Deviation Calculate

List of utility methods to do Standard Deviation Calculate

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Description

The list of methods to do Standard Deviation Calculate are organized into topic(s).

Method

doublecalcStdDeviation(double[] population)
calc Std Deviation 
return Math.sqrt(calcVariance(population));
doublecalcStdDeviation(int sampleCount, long total, long sumOfSquares)
calc Std Deviation 
double result = 0;
double variance = calcVariance(sampleCount, total, sumOfSquares);
if (variance > 0) {
    result = Math.sqrt(variance);
return result;
doublecomputeStddev(double[] array, double mean)
Computes the standard deviation given an array and its mean value 
double stddev = 0;
for (int i = 0; i < array.length; i++) {
    stddev += Math.pow(array[i] - mean, 2);
return Math.sqrt(stddev / array.length);
doublecomputeStdDev(double[] results, double mean)
compute Std Dev 
double stddev = 0;
for (double single : results)
    stddev += (mean - single) * (mean - single);
stddev = Math.sqrt(stddev / results.length);
return stddev;
floatcomputeStddev(float[] array, float mean)
Computes the standard deviation given an array and its mean value 
float stddev = 0;
for (int i = 0; i < array.length; i++) {
    stddev += Math.pow(array[i] - mean, 2);
return (float) Math.sqrt(stddev / array.length);