| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.sysds.test.applications; |
| |
| import java.util.Arrays; |
| |
| import org.junit.Test; |
| import org.apache.sysds.test.AutomatedTestBase; |
| import org.apache.sysds.test.TestConfiguration; |
| |
| public class OrderStatisticsTest extends AutomatedTestBase |
| { |
| |
| private static final String TEST_DIR = "applications/descriptivestats/"; |
| private static final String TEST_CLASS_DIR = TEST_DIR + OrderStatisticsTest.class.getSimpleName() + "/"; |
| |
| @Override |
| public void setUp() { |
| addTestConfiguration("SimpleQuantileTest", |
| new TestConfiguration(TEST_CLASS_DIR, "SimpleQuantileTest", new String[] { "median", "weighted_median" })); |
| addTestConfiguration("QuantileTest", |
| new TestConfiguration(TEST_CLASS_DIR, "QuantileTest", new String[] { "quantile", "weighted_quantile" })); |
| addTestConfiguration("IQMTest", |
| new TestConfiguration(TEST_CLASS_DIR, "IQMTest", new String[] { "iqm", "weighted_iqm" })); |
| } |
| |
| public static double quantile(double[] vector, double p) |
| { |
| int i=(int)Math.ceil(p*vector.length); |
| //System.out.println("P = "+p+", i="+i+", value: "+vector[i-1]); |
| return vector[i-1]; |
| } |
| |
| public static double IQM(double[] vector) { |
| int start=(int)Math.ceil(0.25*vector.length); |
| int end=(int)Math.ceil(0.75*vector.length); |
| double sum=0; |
| for(int i=start; i<end; i++) |
| sum+=vector[i]; |
| return sum/(end-start); |
| } |
| |
| public static double[] sort(double[][] vector) |
| { |
| double[] ret=new double[vector.length]; |
| for(int i=0; i<ret.length; i++) |
| ret[i]=vector[i][0]; |
| Arrays.sort(ret); |
| return ret; |
| } |
| |
| public static double[][] blowUp(double[][] vector, double[][] weight) { |
| int totalNum=0; |
| for(int i=0; i<weight.length; i++) |
| totalNum+=weight[i][0]; |
| double[][] ret=new double[totalNum][1]; |
| int index=0; |
| for(int i=0; i<weight.length; i++) |
| { for(int j=0; j<weight[i][0]; j++) |
| ret[index++][0]=vector[i][0]; |
| } |
| return ret; |
| } |
| |
| public static void round(double[][] weight) { |
| for(int i=0; i<weight.length; i++) |
| weight[i][0]=Math.floor(weight[i][0]); |
| } |
| |
| //@Test |
| public void testSimpleQuantile() |
| { |
| int rows = 10; |
| |
| TestConfiguration config = getTestConfiguration("SimpleQuantileTest"); |
| config.addVariable("rows", rows); |
| |
| loadTestConfiguration(config); |
| |
| createHelperMatrix(); |
| double[][] vector = getRandomMatrix(rows, 1, 0, 1, 1, System.currentTimeMillis()); |
| double[][] weight = getRandomMatrix(rows, 1, 1, 10, 1, System.currentTimeMillis()); |
| round(weight); |
| |
| double[] sorted=sort(vector); |
| double median = quantile(sorted, 0.5); |
| |
| writeInputMatrix("vector", vector); |
| writeExpectedHelperMatrix("median", median); |
| |
| |
| double[] fullsorted=sort(blowUp(vector, weight)); |
| double weightedmedian=quantile(fullsorted, 0.5); |
| writeInputMatrix("weight", weight); |
| writeExpectedHelperMatrix("weighted_median", weightedmedian); |
| |
| runTest(); |
| |
| compareResults(5e-14); |
| } |
| |
| @Test |
| public void testQuantile() |
| { |
| int rows1 = 10; |
| int rows2 = 5; |
| |
| TestConfiguration config = getTestConfiguration("QuantileTest"); |
| config.addVariable("rows1", rows1); |
| config.addVariable("rows2", rows2); |
| |
| loadTestConfiguration(config); |
| |
| createHelperMatrix(); |
| double[][] vector = getRandomMatrix(rows1, 1, 0, 1, 1, System.currentTimeMillis()); |
| double[][] weight = getRandomMatrix(rows1, 1, 1, 10, 1, System.currentTimeMillis()); |
| round(weight); |
| double[][] prob = getRandomMatrix(rows2, 1, 0, 1, 1, System.currentTimeMillis()); |
| |
| double[][] q=new double[prob.length][1]; |
| double[] sorted=sort(vector); |
| for(int i=0; i<prob.length; i++) |
| q[i][0]= quantile(sorted, prob[i][0]); |
| |
| writeInputMatrix("vector", vector); |
| writeInputMatrix("prob", prob); |
| writeExpectedMatrix("quantile", q); |
| |
| double[][] wq=new double[prob.length][1]; |
| double[] fullsorted=sort(blowUp(vector, weight)); |
| for(int i=0; i<prob.length; i++) |
| wq[i][0]=quantile(fullsorted, prob[i][0]); |
| writeInputMatrix("weight", weight); |
| writeExpectedMatrix("weighted_quantile", wq); |
| |
| runTest(); |
| |
| compareResults(5e-14); |
| } |
| |
| } |