Return-Path: X-Original-To: apmail-mahout-commits-archive@www.apache.org Delivered-To: apmail-mahout-commits-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 97458926B for ; Thu, 22 Dec 2011 23:51:53 +0000 (UTC) Received: (qmail 12179 invoked by uid 500); 22 Dec 2011 23:51:53 -0000 Delivered-To: apmail-mahout-commits-archive@mahout.apache.org Received: (qmail 12133 invoked by uid 500); 22 Dec 2011 23:51:53 -0000 Mailing-List: contact commits-help@mahout.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@mahout.apache.org Delivered-To: mailing list commits@mahout.apache.org Received: (qmail 12126 invoked by uid 99); 22 Dec 2011 23:51:53 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 22 Dec 2011 23:51:53 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=5.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.4] (HELO eris.apache.org) (140.211.11.4) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 22 Dec 2011 23:51:52 +0000 Received: from eris.apache.org (localhost [127.0.0.1]) by eris.apache.org (Postfix) with ESMTP id E29E423889DA; Thu, 22 Dec 2011 23:51:31 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: svn commit: r1222514 - /mahout/trunk/math/src/test/java/org/apache/mahout/math/QRDecompositionTest.java Date: Thu, 22 Dec 2011 23:51:31 -0000 To: commits@mahout.apache.org From: tdunning@apache.org X-Mailer: svnmailer-1.0.8-patched Message-Id: <20111222235131.E29E423889DA@eris.apache.org> Author: tdunning Date: Thu Dec 22 23:51:31 2011 New Revision: 1222514 URL: http://svn.apache.org/viewvc?rev=1222514&view=rev Log: MAHOUT-792 - Additional test for QR decomposition. Modified: mahout/trunk/math/src/test/java/org/apache/mahout/math/QRDecompositionTest.java Modified: mahout/trunk/math/src/test/java/org/apache/mahout/math/QRDecompositionTest.java URL: http://svn.apache.org/viewvc/mahout/trunk/math/src/test/java/org/apache/mahout/math/QRDecompositionTest.java?rev=1222514&r1=1222513&r2=1222514&view=diff ============================================================================== --- mahout/trunk/math/src/test/java/org/apache/mahout/math/QRDecompositionTest.java (original) +++ mahout/trunk/math/src/test/java/org/apache/mahout/math/QRDecompositionTest.java Thu Dec 22 23:51:31 2011 @@ -17,10 +17,27 @@ package org.apache.mahout.math; +import org.apache.mahout.math.function.DoubleDoubleFunction; import org.apache.mahout.math.function.Functions; import org.junit.Test; public final class QRDecompositionTest extends MahoutTestCase { + @Test + public void rank1() { + Matrix x = new DenseMatrix(3, 3); + x.viewRow(0).assign(new double[]{1, 2, 3}); + x.viewRow(1).assign(new double[]{2, 4, 6}); + x.viewRow(2).assign(new double[]{3, 6, 9}); + + QRDecomposition qr = new QRDecomposition(x); + assertFalse(qr.hasFullRank()); + assertEquals(0, new DenseVector(new double[]{3.741657, 7.483315, 11.22497}).aggregate(qr.getR().viewRow(0), Functions.PLUS, new DoubleDoubleFunction() { + @Override + public double apply(double arg1, double arg2) { + return Math.abs(arg1) - Math.abs(arg2); + } + }), 1e-5); + } @Test public void fullRankTall() {