Lines Matching refs:Sum
23 import org.apache.commons.math.stat.descriptive.summary.Sum;
29 * mean = sum(x_i) / n
156 Sum sum = new Sum();
160 double xbar = sum.evaluate(values, begin, length) / sampleSize;
204 Sum sum = new Sum();
207 double sumw = sum.evaluate(weights,begin,length);
208 double xbarw = sum.evaluate(values, weights, begin, length) / sumw;
