net.sourceforge.combean.mathprog.linalg.statics
Class SparseVectorUtil

java.lang.Object
  net.sourceforge.combean.mathprog.linalg.statics.SparseVectorUtil

public class SparseVectorUtil
extends Object

A collection of utility function to calculate with sparse vectors

Constructor Summary

SparseVectorUtil()

Method Summary

static <Label> Set<Label>	collectLabels(SparseVec<Label> vec)
static <Label> double	sum(SparseVec<Label> vec) Calculate the sum of the components of the vector

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SparseVectorUtil

public SparseVectorUtil()

Method Detail

sum

public static final <Label> double sum(SparseVec<Label> vec)

Calculate the sum of the components of the vector

Parameters:

vec - a sparse vector

Returns:

the sum of the components of vec

collectLabels

public static final <Label> Set<Label> collectLabels(SparseVec<Label> vec)