if (test(values, begin, length)) { Sum sum = new Sum(); double sampleSize = (double) length;
if (test(values, begin, length)) { Sum sum = new Sum(); double sampleSize = length;
if (test(values, begin, length)) { Sum sum = new Sum(); double sampleSize = length;
if (test(values, weights, begin, length)) { Sum sum = new Sum();
if (test(values, weights, begin, length)) { Sum sum = new Sum();