Example usage for org.apache.commons.math3.linear RealVectorPreservingVisitor RealVectorPreservingVisitor

Introduction

In this page you can find the example usage for org.apache.commons.math3.linear RealVectorPreservingVisitor RealVectorPreservingVisitor.

Prototype

RealVectorPreservingVisitor

Source Link

Usage

From source file:edu.byu.nlp.math.RealVectors.java

public static double sum(RealVector v) {
    if (v == null) {
        return 0;
    }//from  w ww  .  j a  v a 2s. c  o  m
    if (v.getDimension() == 0) {
        return 0;
    }
    return v.walkInOptimizedOrder(new RealVectorPreservingVisitor() {
        private double total = 0;

        @Override
        public void visit(int index, double value) {
            total += value;
        }

        @Override
        public void start(int dimension, int start, int end) {
        }

        @Override
        public double end() {
            return total;
        }
    });
}

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