edu.emory.mathcs.csparsej.tdouble

Class Dcs_amd

java.lang.Object

edu.emory.mathcs.csparsej.tdouble.Dcs_amd

public class Dcs_amd
extends java.lang.Object

Approximate minimum degree ordering.

Constructor Summary

Constructors

Constructor and Description
Dcs_amd()

Method Summary

Modifier and Type	Method and Description
static int[]	cs_amd(int order, Dcs_common.Dcs A) Minimum degree ordering of A+A' (if A is symmetric) or A'A.

Methods inherited from class java.lang.Object

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

Constructor Detail

Dcs_amd

public Dcs_amd()

Method Detail

cs_amd

public static int[] cs_amd(int order,
                           Dcs_common.Dcs A)

Minimum degree ordering of A+A' (if A is symmetric) or A'A.

Parameters:

order - 0:natural, 1:Chol, 2:LU, 3:QR

A - column-compressed matrix

Returns:

amd(A+A') if A is symmetric, or amd(A'A) otherwise, null on error or for natural ordering