Java Utililty Methods Array Sum Square

List of utility methods to do Array Sum Square

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Description

The list of methods to do Array Sum Square are organized into topic(s).

Method

doublesumSquaredError(double[] a, double[] b)
Build the sum of the squared difference of all elements with the same index numbers in the arrays. 
if (a.length != b.length) {
    throw new IllegalArgumentException("Arrays must be equal length");
double sum = 0;
for (int i = 0; i < a.length; i++) {
    double delta = a[i] - b[i];
    if (!Double.isNaN(delta)) {
        sum += delta * delta;
...
doublesumSquareDev(double[] values, double target)
Computes the sum of squared deviations of from 
double sumsq = 0d;
for (int i = 0; i < values.length; i++) {
    final double dev = values[i] - target;
    sumsq += (dev * dev);
return sumsq;
doublesumSquareDoubleArray(double[] v)
sum Square Double Array 
double sum = 0;
for (double d : v) {
    sum += d * d;
return sum;
doublesumSquares(double[] aArray)
Computes the sum of the squares all elements in the given array. 
double result = 0;
for (final double a : aArray) {
    result += a * a;
return result;
doublesumSquares(double[] data)
Sums the squares of all components; also called the energy of the array. 
double ans = 0.0;
for (int k = 0; k < data.length; k++) {
    ans += data[k] * data[k];
return (ans);
floatsumSquares(final float[] a)
sum Squares 
return sumSquares(a, 0, a.length);
floatsumSquares(float[] in)
sum Squares 
float sum = 0;
for (int i = 0; i < in.length; i++) {
    sum += (in[i] * in[i]);
return sum;
doublesumValuesSquared(double[] vector)
Compute the sum of values squared in an array 
double sum = 0;
for (double v : vector)
    sum += v * v;
return sum;