/*******************************************************************************
* Copyright (c) 2010 Haifeng Li
*
* Licensed 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 smile.manifold;
import smile.data.parser.DelimitedTextParser;
import smile.data.AttributeDataset;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import smile.math.Math;
import smile.math.matrix.Matrix;
import static org.junit.Assert.*;
/**
*
* @author Haifeng Li
*/
public class LLETest {
AttributeDataset swissroll;
public LLETest() {
DelimitedTextParser parser = new DelimitedTextParser();
parser.setDelimiter("\t");
try {
swissroll = parser.parse("Swissroll", smile.data.parser.IOUtils.getTestDataFile("manifold/swissroll.txt"));
} catch (Exception e) {
System.err.println(e);
}
}
@BeforeClass
public static void setUpClass() throws Exception {
}
@AfterClass
public static void tearDownClass() throws Exception {
}
@Before
public void setUp() {
}
@After
public void tearDown() {
}
/**
* Test of learn method, of class LLE.
*/
@Test
public void testLearn() {
System.out.println("learn");
double[][] points = {
{ 0.0099, -0.0189},
{-0.0169, -0.0219},
{ 0.0498, 0.0159},
{ 0.0297, -0.0144},
{-0.0106, -0.0222},
{ 0.0043, -0.0374},
{-0.0155, -0.0284},
{ 0.0354, 0.0177},
{ 0.0080, 0.0151},
{ 0.0510, 0.0401},
{ 0.0368, -0.0290},
{-0.0334, 0.0123},
{ 0.0280, -0.0459},
{-0.0358, -0.0052},
{-0.0198, -0.0402},
{-0.0196, 0.0012},
{-0.0220, -0.0257},
{ 0.0342, 0.0045},
{-0.0531, 0.0324},
{-0.0362, -0.0207},
{-0.0079, 0.0054},
{-0.0357, -0.0249},
{-0.0366, -0.0362},
{-0.0259, 0.0097},
{ 0.0178, -0.0183},
{ 0.0326, -0.0414},
{-0.0327, 0.0449},
{-0.0159, -0.0335},
{-0.0187, -0.0106},
{ 0.0259, -0.0474},
{ 0.0236, -0.0329},
{ 0.0288, -0.0069},
{-0.0182, -0.0214},
{ 0.0303, -0.0162},
{-0.0487, 0.0066},
{ 0.0543, 0.0439},
{ 0.0351, 0.0305},
{ 0.0214, 0.0222},
{ 0.0165, -0.0348},
{-0.0420, 0.0551},
{-0.0099, 0.0526},
{-0.0082, 0.0135},
{-0.0328, -0.0058},
{ 0.0136, 0.0046},
{ 0.0460, 0.0397},
{-0.0108, 0.0295},
{-0.0001, 0.0146},
{-0.0370, -0.0325},
{ 0.0198, -0.0119},
{-0.0377, -0.0152},
{-0.0198, -0.0068},
{-0.0126, -0.0037},
{ 0.0157, 0.0352},
{-0.0332, -0.0019},
{ 0.0101, -0.0027},
{-0.0236, 0.0194},
{ 0.0179, -0.0430},
{ 0.0337, -0.0477},
{ 0.0135, -0.0293},
{-0.0315, 0.0034},
{-0.0194, 0.0481},
{-0.0379, -0.0225},
{-0.0425, -0.0184},
{-0.0277, 0.0087},
{-0.0157, -0.0153},
{ 0.0331, 0.0420},
{-0.0382, -0.0297},
{ 0.0516, 0.0471},
{ 0.0278, 0.0415},
{ 0.0100, -0.0269},
{-0.0092, -0.0315},
{-0.0012, -0.0348},
{-0.0120, -0.0178},
{ 0.0373, -0.0275},
{ 0.0028, -0.0357},
{ 0.0429, -0.0028},
{ 0.0383, -0.0084},
{-0.0336, -0.0013},
{ 0.0457, 0.0347},
{-0.0487, 0.0388},
{ 0.0142, -0.0467},
{ 0.0303, 0.0131},
{ 0.0200, -0.0630},
{ 0.0153, 0.0345},
{-0.0093, 0.0136},
{ 0.0278, 0.0125},
{-0.0248, 0.0038},
{-0.0206, 0.0502},
{ 0.0401, 0.0156},
{ 0.0286, -0.0118},
{-0.0512, 0.0303},
{-0.0118, 0.0040},
{ 0.0288, -0.0173},
{ 0.0069, -0.0076},
{ 0.0447, 0.0077},
{ 0.0281, -0.0604},
{-0.0391, -0.0027},
{ 0.0227, 0.0239},
{-0.0371, -0.0361},
{ 0.0167, -0.0293},
{ 0.0481, 0.0146},
{-0.0177, 0.0328},
{-0.0384, -0.0330},
{-0.0149, -0.0379},
{-0.0310, -0.0248},
{-0.0194, -0.0354},
{-0.0147, -0.0264},
{ 0.0215, 0.0291},
{ 0.0483, 0.0364},
{-0.0212, -0.0135},
{-0.0298, 0.0027},
{ 0.0481, 0.0018},
{-0.0149, 0.0211},
{ 0.0307, 0.0072},
{ 0.0080, -0.0191},
{-0.0229, 0.0317},
{ 0.0018, -0.0455},
{-0.0306, 0.0312},
{ 0.0242, 0.0104},
{ 0.0511, 0.0344},
{ 0.0371, 0.0325},
{ 0.0547, 0.0571},
{ 0.0239, -0.0321},
{ 0.0193, -0.0577},
{-0.0151, 0.0195},
{-0.0084, -0.0219},
{ 0.0171, 0.0141},
{ 0.0117, -0.0295},
{ 0.0366, -0.0204},
{-0.0455, 0.0278},
{ 0.0138, -0.0569},
{ 0.0390, -0.0566},
{ 0.0001, 0.0342},
{ 0.0119, -0.0591},
{ 0.0124, -0.0010},
{ 0.0259, -0.0298},
{ 0.0559, 0.0560},
{ 0.0541, 0.0349},
{-0.0305, 0.0279},
{ 0.0578, 0.0487},
{-0.0100, 0.0208},
{-0.0320, -0.0253},
{-0.0473, 0.0293},
{ 0.0001, -0.0477},
{ 0.0146, 0.0460},
{-0.0384, -0.0366},
{-0.0078, -0.0183},
{-0.0350, 0.0412},
{ 0.0073, 0.0376},
{ 0.0424, 0.0038},
{-0.0439, -0.0003},
{ 0.0164, 0.0266},
{ 0.0498, 0.0062},
{ 0.0079, -0.0331},
{ 0.0236, 0.0134},
{-0.0268, -0.0193},
{ 0.0337, -0.0044},
{ 0.0205, -0.0537},
{ 0.0519, 0.0397},
{-0.0020, -0.0208},
{-0.0390, 0.0105},
{ 0.0553, 0.0556},
{-0.0402, -0.0101},
{ 0.0163, -0.0385},
{ 0.0175, -0.0584},
{-0.0146, -0.0250},
{ 0.0155, -0.0207},
{-0.0463, 0.0228},
{-0.0275, -0.0032},
{ 0.0327, -0.0602},
{-0.0465, 0.0528},
{-0.0083, -0.0288},
{-0.0200, -0.0338},
{-0.0437, 0.0317},
{ 0.0392, -0.0031},
{ 0.0403, 0.0076},
{ 0.0015, -0.0306},
{ 0.0006, 0.0417},
{-0.0292, -0.0135},
{ 0.0002, -0.0359},
{-0.0110, -0.0175},
{-0.0366, 0.0191},
{-0.0080, 0.0197},
{ 0.0141, -0.0455},
{ 0.0157, 0.0057},
{ 0.0309, -0.0265},
{-0.0275, 0.0378},
{ 0.0526, 0.0198},
{-0.0472, 0.0212},
{-0.0443, 0.0582},
{ 0.0394, -0.0261},
{ 0.0009, -0.0002},
{ 0.0234, -0.0261},
{-0.0411, 0.0529},
{ 0.0308, -0.0509},
{ 0.0416, 0.0192},
{ 0.0388, -0.0329},
{ 0.0057, -0.0308},
{ 0.0003, -0.0274},
{ 0.0173, -0.0555},
{ 0.0197, -0.0498},
{-0.0304, -0.0402},
{ 0.0084, -0.0088},
{-0.0420, -0.0428},
{ 0.0585, 0.0509},
{ 0.0506, 0.0388},
{-0.0038, 0.0030},
{-0.0294, 0.0340},
{-0.0031, -0.0348},
{-0.0306, 0.0429},
{-0.0244, 0.0072},
{-0.0458, -0.0164},
{-0.0337, 0.0139},
{-0.0448, -0.0151},
{ 0.0421, 0.0330},
{-0.0513, 0.0274},
{-0.0362, 0.0288},
{-0.0236, -0.0106},
{-0.0510, 0.0433},
{ 0.0458, 0.0229},
{-0.0062, 0.0448},
{ 0.0434, -0.0144},
{ 0.0031, 0.0164},
{ 0.0468, -0.0046},
{ 0.0006, 0.0426},
{-0.0078, 0.0212},
{ 0.0511, 0.0204},
{-0.0368, -0.0223},
{-0.0262, -0.0337},
{ 0.0227, 0.0333},
{ 0.0079, 0.0352},
{-0.0068, -0.0397},
{ 0.0167, 0.0276},
{ 0.0472, 0.0053},
{ 0.0346, -0.0575},
{ 0.0398, -0.0019},
{ 0.0252, 0.0453},
{ 0.0403, 0.0499},
{-0.0388, 0.0208},
{ 0.0285, -0.0366},
{ 0.0133, 0.0018},
{ 0.0504, 0.0151},
{ 0.0297, -0.0242},
{ 0.0135, -0.0041},
{-0.0229, -0.0203},
{ 0.0446, 0.0091},
{-0.0310, -0.0170},
{-0.0206, -0.0080},
{ 0.0347, -0.0434},
{-0.0328, -0.0349},
{ 0.0368, -0.0419},
{ 0.0018, -0.0321},
{-0.0073, -0.0001},
{-0.0507, 0.0230},
{-0.0345, -0.0355},
{ 0.0299, 0.0371},
{-0.0250, 0.0385},
{-0.0380, -0.0103},
{-0.0017, -0.0319},
{-0.0385, -0.0257},
{ 0.0374, -0.0027},
{ 0.0506, 0.0179},
{-0.0325, 0.0561},
{-0.0377, -0.0195},
{ 0.0406, 0.0352},
{ 0.0123, -0.0113},
{-0.0456, 0.0263},
{ 0.0344, -0.0624},
{-0.0381, 0.0448},
{-0.0276, -0.0164},
{-0.0004, -0.0435},
{ 0.0475, 0.0281},
{-0.0431, -0.0347},
{ 0.0585, 0.0505},
{ 0.0416, 0.0373},
{ 0.0549, 0.0514},
{ 0.0041, -0.0057},
{-0.0325, 0.0311},
{-0.0273, 0.0230},
{-0.0459, 0.0129},
{ 0.0091, -0.0089},
{ 0.0403, -0.0368},
{-0.0320, 0.0059},
{ 0.0245, -0.0165},
{-0.0199, 0.0003},
{-0.0400, -0.0275},
{ 0.0206, -0.0151},
{ 0.0300, -0.0677},
{ 0.0201, -0.0178},
{ 0.0109, -0.0581},
{ 0.0173, 0.0109},
{-0.0152, -0.0141},
{-0.0402, 0.0189},
{-0.0005, 0.0344},
{-0.0150, -0.0003},
{ 0.0105, -0.0414},
{-0.0095, -0.0033},
{-0.0245, -0.0213},
{ 0.0117, -0.0588},
{ 0.0258, -0.0383},
{-0.0167, -0.0384},
{ 0.0308, 0.0379},
{ 0.0081, 0.0066},
{-0.0179, -0.0403},
{-0.0045, -0.0477},
{-0.0362, -0.0197},
{-0.0434, 0.0316},
{-0.0339, -0.0353},
{ 0.0449, 0.0296},
{ 0.0043, -0.0336},
{ 0.0059, -0.0234},
{ 0.0163, -0.0622},
{-0.0193, 0.0523},
{-0.0310, -0.0173},
{ 0.0475, -0.0026},
{ 0.0024, 0.0202},
{ 0.0310, 0.0502},
{ 0.0185, -0.0286},
{-0.0375, 0.0087},
{ 0.0366, 0.0106},
{ 0.0044, 0.0215},
{ 0.0177, 0.0256},
{-0.0477, 0.0309},
{ 0.0075, -0.0494},
{ 0.0110, -0.0342},
{ 0.0356, 0.0104},
{-0.0211, -0.0380},
{-0.0373, -0.0119},
{ 0.0205, -0.0424},
{-0.0414, 0.0522},
{ 0.0033, 0.0441},
{-0.0459, 0.0222},
{ 0.0517, 0.0329},
{ 0.0276, -0.0440},
{-0.0139, 0.0451},
{ 0.0504, 0.0326},
{-0.0180, 0.0274},
{-0.0180, 0.0077},
{-0.0498, 0.0122},
{ 0.0206, 0.0406},
{-0.0198, -0.0330},
{-0.0355, -0.0159},
{-0.0043, 0.0261},
{ 0.0274, -0.0242},
{ 0.0538, 0.0533},
{ 0.0094, -0.0163},
{-0.0167, 0.0517},
{ 0.0200, 0.0347},
{-0.0240, 0.0132},
{ 0.0002, 0.0348},
{-0.0122, 0.0411},
{-0.0481, 0.0088},
{ 0.0428, 0.0438},
{-0.0200, 0.0336},
{ 0.0151, -0.0363},
{ 0.0410, -0.0616},
{-0.0030, 0.0071},
{-0.0024, -0.0163},
{ 0.0182, -0.0386},
{ 0.0123, 0.0508},
{ 0.0257, 0.0308},
{-0.0398, -0.0208},
{-0.0139, -0.0149},
{-0.0046, 0.0102},
{-0.0314, 0.0070},
{-0.0412, 0.0551},
{-0.0129, 0.0197},
{-0.0357, -0.0422},
{-0.0400, -0.0137},
{-0.0373, -0.0252},
{-0.0408, -0.0386},
{ 0.0023, -0.0333},
{-0.0252, 0.0327},
{-0.0539, 0.0375},
{-0.0368, 0.0031},
{-0.0022, -0.0294},
{ 0.0219, -0.0336},
{ 0.0304, 0.0286},
{ 0.0549, 0.0407},
{ 0.0401, 0.0339},
{ 0.0432, -0.0505},
{ 0.0094, -0.0001},
{ 0.0391, -0.0231},
{ 0.0191, 0.0411},
{-0.0183, -0.0180},
{ 0.0446, -0.0392},
{ 0.0061, -0.0285},
{-0.0329, -0.0140},
{ 0.0304, 0.0434},
{ 0.0288, -0.0254},
{-0.0389, 0.0480},
{ 0.0147, -0.0384},
{-0.0275, -0.0391},
{ 0.0493, 0.0102},
{ 0.0341, -0.0310},
{-0.0278, -0.0160},
{ 0.0288, 0.0167},
{-0.0041, -0.0147},
{ 0.0338, -0.0636},
{-0.0172, -0.0439},
{-0.0333, 0.0124},
{ 0.0043, -0.0435},
{ 0.0145, 0.0009},
{ 0.0428, 0.0184},
{ 0.0500, 0.0490},
{-0.0232, -0.0163},
{-0.0447, 0.0476},
{-0.0410, 0.0503},
{-0.0245, 0.0376},
{-0.0240, -0.0181},
{-0.0216, -0.0405},
{ 0.0245, -0.0061},
{-0.0420, 0.0107},
{-0.0170, 0.0476},
{ 0.0082, -0.0145},
{-0.0171, 0.0431},
{ 0.0511, 0.0490},
{-0.0322, -0.0333},
{ 0.0047, -0.0359},
{ 0.0240, 0.0067},
{-0.0207, 0.0255},
{-0.0396, 0.0064},
{ 0.0005, -0.0431},
{ 0.0278, -0.0006},
{ 0.0190, 0.0074},
{ 0.0315, -0.0586},
{-0.0193, 0.0311},
{-0.0452, 0.0555},
{-0.0075, -0.0057},
{-0.0067, -0.0078},
{ 0.0152, -0.0379},
{ 0.0504, 0.0437},
{-0.0406, -0.0287},
{-0.0440, 0.0397},
{ 0.0042, 0.0297},
{-0.0154, -0.0359},
{ 0.0166, 0.0201},
{-0.0511, 0.0172},
{-0.0172, 0.0492},
{-0.0124, -0.0374},
{-0.0207, 0.0444},
{-0.0408, -0.0392},
{-0.0222, -0.0345},
{ 0.0411, -0.0353},
{-0.0352, 0.0522},
{ 0.0460, -0.0099},
{-0.0310, 0.0331},
{-0.0077, 0.0379},
{ 0.0224, 0.0305},
{ 0.0577, 0.0483},
{ 0.0452, -0.0092},
{-0.0076, 0.0144},
{-0.0487, 0.0508},
{-0.0471, 0.0153},
{-0.0410, 0.0198},
{-0.0457, 0.0410},
{-0.0239, -0.0293},
{ 0.0171, 0.0112},
{-0.0235, 0.0077},
{ 0.0210, -0.0371},
{ 0.0526, 0.0312},
{ 0.0234, -0.0254},
{ 0.0149, -0.0425},
{-0.0288, 0.0508},
{-0.0297, 0.0001},
{-0.0249, -0.0021},
{ 0.0478, 0.0404},
{ 0.0173, 0.0149},
{-0.0121, -0.0292},
{-0.0430, 0.0528},
{ 0.0261, 0.0277},
{ 0.0584, 0.0609},
{ 0.0156, -0.0188},
{ 0.0213, 0.0246},
{ 0.0429, 0.0349},
{ 0.0362, -0.0313},
{-0.0023, -0.0114},
{ 0.0227, 0.0282},
{-0.0200, -0.0120},
{-0.0215, -0.0146},
{ 0.0233, -0.0306},
{-0.0428, 0.0261},
{ 0.0589, 0.0614},
{-0.0005, -0.0090},
{-0.0107, -0.0053},
{ 0.0243, -0.0336},
{ 0.0397, -0.0545},
{-0.0347, -0.0064},
{ 0.0427, -0.0112},
{-0.0123, -0.0339},
{ 0.0217, -0.0355},
{ 0.0008, -0.0096},
{-0.0160, -0.0243},
{-0.0264, 0.0448},
{-0.0091, 0.0264},
{ 0.0012, -0.0412},
{-0.0363, 0.0064},
{-0.0284, -0.0152},
{ 0.0389, 0.0206},
{ 0.0218, 0.0433},
{-0.0437, 0.0149},
{-0.0516, 0.0384},
{ 0.0160, 0.0375},
{-0.0029, 0.0106},
{ 0.0433, -0.0052},
{ 0.0378, -0.0410},
{ 0.0222, -0.0222},
{ 0.0442, -0.0077},
{ 0.0266, -0.0075},
{-0.0381, -0.0362},
{ 0.0164, -0.0066},
{-0.0032, 0.0340},
{-0.0118, -0.0347},
{ 0.0183, 0.0506},
{ 0.0071, 0.0390},
{-0.0039, 0.0500},
{-0.0488, 0.0481},
{-0.0522, 0.0416},
{ 0.0210, -0.0645},
{ 0.0290, -0.0220},
{ 0.0486, 0.0069},
{ 0.0189, -0.0185},
{ 0.0408, -0.0621},
{-0.0084, -0.0081},
{-0.0420, -0.0206},
{ 0.0349, 0.0446},
{-0.0344, -0.0236},
{-0.0294, 0.0038},
{-0.0334, -0.0197},
{-0.0457, 0.0544},
{ 0.0503, 0.0113},
{ 0.0122, 0.0370},
{-0.0262, -0.0393},
{ 0.0491, 0.0521},
{ 0.0500, 0.0286},
{-0.0404, 0.0013},
{ 0.0616, 0.0655},
{-0.0386, 0.0206},
{-0.0346, 0.0256},
{ 0.0040, 0.0129},
{-0.0466, -0.0035},
{-0.0230, -0.0095},
{-0.0509, 0.0261},
{-0.0255, 0.0211},
{ 0.0365, -0.0251},
{-0.0104, 0.0075},
{-0.0271, -0.0267},
{-0.0386, -0.0305},
{-0.0200, -0.0290},
{ 0.0555, 0.0512},
{-0.0164, -0.0007},
{-0.0382, -0.0025},
{ 0.0479, 0.0295},
{-0.0370, -0.0221},
{ 0.0251, 0.0055},
{-0.0433, -0.0308},
{-0.0456, 0.0446},
{-0.0405, -0.0375},
{-0.0104, -0.0421},
{-0.0434, -0.0232},
{ 0.0494, 0.0404},
{-0.0480, 0.0235},
{-0.0057, -0.0192},
{-0.0490, 0.0394},
{ 0.0394, -0.0125},
{-0.0390, -0.0189},
{-0.0010, -0.0339},
{-0.0003, -0.0256},
{ 0.0562, 0.0381},
{-0.0081, 0.0150},
{-0.0033, -0.0008},
{ 0.0258, 0.0234},
{ 0.0138, -0.0221},
{-0.0325, -0.0338},
{ 0.0386, -0.0522},
{ 0.0379, -0.0374},
{ 0.0402, 0.0317},
{-0.0347, 0.0150},
{-0.0051, 0.0357},
{-0.0114, 0.0180},
{-0.0097, 0.0152},
{-0.0050, -0.0322},
{-0.0416, 0.0212},
{ 0.0425, 0.0511},
{ 0.0145, -0.0086},
{-0.0260, -0.0203},
{-0.0370, 0.0141},
{-0.0063, -0.0450},
{-0.0344, 0.0444},
{ 0.0511, 0.0153},
{-0.0485, 0.0039},
{ 0.0163, 0.0265},
{-0.0070, -0.0051},
{ 0.0434, -0.0445},
{-0.0180, 0.0287},
{-0.0353, -0.0429},
{-0.0436, -0.0083},
{-0.0013, -0.0466},
{ 0.0339, -0.0196},
{-0.0416, 0.0156},
{-0.0424, -0.0263},
{-0.0310, -0.0095},
{ 0.0463, 0.0007},
{-0.0366, -0.0291},
{-0.0173, -0.0387},
{ 0.0429, -0.0563},
{ 0.0148, -0.0366},
{-0.0136, 0.0346},
{ 0.0434, -0.0113},
{-0.0423, -0.0072},
{ 0.0432, 0.0471},
{-0.0317, 0.0414},
{ 0.0554, 0.0349},
{ 0.0516, 0.0212},
{-0.0390, 0.0188},
{ 0.0224, -0.0288},
{-0.0066, 0.0231},
{-0.0306, -0.0214},
{-0.0456, 0.0168},
{-0.0264, -0.0026},
{-0.0200, 0.0095},
{-0.0076, -0.0304},
{ 0.0075, 0.0105},
{ 0.0010, 0.0344},
{ 0.0034, 0.0505},
{ 0.0420, -0.0108},
{ 0.0365, 0.0055},
{-0.0220, -0.0113},
{-0.0443, 0.0030},
{ 0.0298, -0.0556},
{-0.0029, 0.0486},
{-0.0284, -0.0141},
{-0.0304, 0.0346},
{-0.0029, 0.0309},
{-0.0245, 0.0102},
{ 0.0532, 0.0384},
{ 0.0021, -0.0177},
{-0.0437, -0.0307},
{-0.0426, 0.0209},
{ 0.0113, -0.0068},
{ 0.0594, 0.0562},
{-0.0023, 0.0059},
{-0.0218, -0.0353},
{-0.0319, 0.0286},
{ 0.0362, 0.0409},
{-0.0317, 0.0094},
{ 0.0390, -0.0290},
{ 0.0436, 0.0323},
{ 0.0416, -0.0478},
{ 0.0399, -0.0021},
{-0.0307, -0.0415},
{-0.0429, 0.0323},
{ 0.0084, -0.0487},
{-0.0515, 0.0383},
{ 0.0440, -0.0069},
{ 0.0264, -0.0037},
{-0.0129, -0.0333},
{-0.0477, 0.0183},
{ 0.0120, -0.0378},
{ 0.0365, 0.0045},
{-0.0315, -0.0358},
{ 0.0112, -0.0223},
{-0.0064, -0.0372},
{-0.0354, 0.0433},
{ 0.0322, 0.0338},
{ 0.0104, -0.0052},
{-0.0257, -0.0275},
{-0.0039, -0.0372},
{ 0.0192, 0.0107},
{ 0.0324, -0.0549},
{ 0.0406, 0.0005},
{-0.0344, -0.0381},
{ 0.0041, -0.0419},
{-0.0065, -0.0122},
{ 0.0383, -0.0039},
{-0.0332, -0.0110},
{ 0.0407, -0.0494},
{-0.0198, 0.0261},
{-0.0238, 0.0104},
{ 0.0511, 0.0563},
{ 0.0534, 0.0281},
{-0.0408, -0.0365},
{ 0.0300, 0.0135},
{-0.0336, 0.0059},
{ 0.0327, -0.0640},
{ 0.0344, -0.0460},
{-0.0420, -0.0342},
{-0.0011, 0.0215},
{-0.0532, 0.0373},
{ 0.0136, 0.0002},
{ 0.0374, -0.0487},
{ 0.0219, -0.0146},
{ 0.0354, 0.0064},
{-0.0476, 0.0433},
{ 0.0446, -0.0395},
{ 0.0240, -0.0374},
{ 0.0248, -0.0320},
{-0.0355, -0.0292},
{ 0.0394, -0.0012},
{ 0.0220, 0.0220},
{-0.0324, 0.0282},
{ 0.0096, 0.0003},
{ 0.0279, 0.0276},
{ 0.0056, -0.0308},
{ 0.0452, -0.0002},
{-0.0141, 0.0268},
{-0.0181, -0.0140},
{-0.0313, -0.0174},
{ 0.0546, 0.0399},
{ 0.0314, 0.0480},
{-0.0210, -0.0149},
{-0.0418, 0.0214},
{ 0.0247, -0.0491},
{-0.0053, -0.0144},
{ 0.0400, -0.0411},
{-0.0303, 0.0459},
{-0.0270, 0.0082},
{-0.0318, 0.0502},
{-0.0312, -0.0280},
{-0.0343, -0.0039},
{-0.0240, 0.0160},
{-0.0155, 0.0308},
{ 0.0160, 0.0339},
{-0.0131, 0.0484},
{-0.0480, 0.0330},
{ 0.0251, -0.0172},
{ 0.0158, -0.0557},
{ 0.0336, 0.0299},
{ 0.0460, 0.0307},
{-0.0243, 0.0505},
{-0.0193, -0.0357},
{-0.0219, -0.0026},
{ 0.0339, -0.0472},
{-0.0193, 0.0328},
{-0.0408, -0.0407},
{ 0.0258, -0.0095},
{-0.0538, 0.0347},
{ 0.0555, 0.0568},
{-0.0404, 0.0236},
{ 0.0208, -0.0103},
{-0.0058, 0.0467},
{-0.0161, -0.0345},
{ 0.0176, 0.0285},
{ 0.0188, -0.0281},
{-0.0370, -0.0229},
{-0.0383, -0.0229},
{ 0.0147, -0.0495},
{-0.0119, -0.0154},
{ 0.0310, -0.0409},
{ 0.0446, -0.0093},
{ 0.0399, -0.0504},
{ 0.0441, -0.0067},
{ 0.0010, 0.0261},
{-0.0400, 0.0037},
{ 0.0088, -0.0194},
{-0.0115, -0.0424},
{-0.0308, 0.0051},
{-0.0040, 0.0060},
{ 0.0326, 0.0498},
{ 0.0228, 0.0065},
{ 0.0228, -0.0093},
{ 0.0339, 0.0454},
{ 0.0006, 0.0110},
{ 0.0139, 0.0497},
{ 0.0377, 0.0092},
{-0.0251, -0.0405},
{-0.0489, 0.0222},
{-0.0229, -0.0173},
{-0.0481, 0.0219},
{ 0.0076, -0.0248},
{ 0.0036, 0.0353},
{ 0.0590, 0.0570},
{ 0.0494, 0.0071},
{ 0.0379, -0.0563},
{-0.0068, -0.0319},
{-0.0458, 0.0290},
{-0.0400, -0.0104},
{ 0.0390, 0.0255},
{ 0.0226, 0.0283},
{ 0.0434, -0.0142},
{-0.0088, 0.0133},
{ 0.0271, -0.0537},
{ 0.0614, 0.0642},
{-0.0316, -0.0355},
{-0.0373, -0.0104},
{ 0.0238, -0.0288},
{ 0.0336, 0.0049},
{ 0.0323, 0.0051},
{-0.0442, -0.0246},
{-0.0371, -0.0050},
{ 0.0227, -0.0281},
{-0.0303, 0.0051},
{-0.0260, -0.0132},
{-0.0288, 0.0401},
{ 0.0388, 0.0244},
{-0.0116, -0.0183},
{-0.0065, 0.0021},
{-0.0278, -0.0265},
{ 0.0145, -0.0364},
{-0.0008, 0.0179},
{-0.0079, 0.0345},
{ 0.0084, 0.0412},
{-0.0026, -0.0185},
{ 0.0412, 0.0334},
{-0.0431, 0.0174},
{-0.0478, -0.0007},
{ 0.0461, 0.0099},
{-0.0018, -0.0125},
{-0.0306, 0.0265},
{-0.0241, -0.0219},
{-0.0097, 0.0533},
{ 0.0206, 0.0396},
{-0.0478, 0.0023},
{-0.0363, 0.0131},
{-0.0314, -0.0162},
{ 0.0069, 0.0316},
{ 0.0295, -0.0009},
{-0.0127, 0.0164},
{ 0.0033, -0.0540},
{-0.0099, 0.0237},
{-0.0355, 0.0054},
{-0.0281, -0.0289},
{-0.0366, 0.0167},
{ 0.0143, -0.0603},
{-0.0028, 0.0544},
{ 0.0487, 0.0551},
{ 0.0141, -0.0508},
{ 0.0376, -0.0196},
{ 0.0164, 0.0317},
{-0.0354, 0.0165},
{-0.0297, -0.0232},
{-0.0342, -0.0002},
{ 0.0050, -0.0286},
{ 0.0231, -0.0195},
{-0.0098, 0.0376},
{-0.0347, -0.0360},
{-0.0380, 0.0245},
{-0.0294, -0.0307},
{-0.0225, -0.0406},
{-0.0400, -0.0291},
{ 0.0158, -0.0174},
{ 0.0432, 0.0402},
{ 0.0386, -0.0408},
{-0.0051, 0.0361},
{-0.0023, -0.0083},
{ 0.0385, 0.0170},
{ 0.0322, -0.0633},
{-0.0180, -0.0359},
{ 0.0095, 0.0152},
{-0.0322, 0.0099},
{-0.0065, 0.0233},
{-0.0040, -0.0322},
{ 0.0269, -0.0134},
{-0.0325, 0.0063},
{ 0.0484, -0.0005},
{ 0.0581, 0.0479},
{-0.0410, -0.0250},
{ 0.0010, 0.0122},
{-0.0344, -0.0039},
{-0.0338, -0.0030},
{-0.0419, 0.0107},
{-0.0133, -0.0184},
{-0.0262, 0.0382},
{ 0.0188, -0.0575},
{-0.0225, -0.0067},
{-0.0148, 0.0019},
{-0.0251, -0.0273},
{ 0.0355, -0.0322},
{ 0.0156, 0.0334},
{-0.0494, 0.0212},
{-0.0231, 0.0026},
{-0.0517, 0.0276},
{ 0.0198, -0.0107},
{-0.0207, -0.0128},
{-0.0246, 0.0519},
{ 0.0245, 0.0364},
{ 0.0497, 0.0106},
{-0.0186, 0.0390},
{ 0.0512, 0.0219},
{ 0.0196, 0.0172},
{-0.0374, -0.0132},
{ 0.0307, -0.0502},
{-0.0034, 0.0128},
{ 0.0309, -0.0086},
{ 0.0257, -0.0373},
{-0.0456, -0.0081},
{ 0.0582, 0.0518},
{-0.0382, -0.0066},
{-0.0303, -0.0285},
{-0.0381, -0.0191},
{-0.0090, -0.0152},
{-0.0310, -0.0160},
{ 0.0459, -0.0062},
{ 0.0448, 0.0074},
{ 0.0062, -0.0405},
{ 0.0192, 0.0207},
{ 0.0359, -0.0364},
{-0.0375, -0.0319},
{-0.0231, -0.0050},
{-0.0232, 0.0358},
{-0.0365, -0.0258},
{ 0.0599, 0.0615},
{-0.0468, -0.0020},
{ 0.0120, -0.0092},
{-0.0058, -0.0191},
{ 0.0175, 0.0275},
{-0.0433, -0.0308},
{ 0.0299, -0.0296},
{-0.0331, -0.0391},
{ 0.0236, -0.0018},
{ 0.0019, 0.0476},
{ 0.0482, 0.0244},
{ 0.0407, -0.0194},
{ 0.0269, 0.0365},
{-0.0308, -0.0430},
{-0.0218, -0.0033},
{-0.0512, 0.0390},
{-0.0261, -0.0203},
{-0.0133, -0.0240},
{ 0.0086, -0.0335},
{ 0.0216, 0.0340},
{ 0.0344, -0.0042},
{-0.0161, -0.0384},
{ 0.0230, 0.0401},
{-0.0172, -0.0407},
{-0.0274, -0.0408},
{ 0.0481, 0.0120},
{ 0.0152, 0.0330},
{-0.0291, 0.0222},
{ 0.0361, -0.0543},
{ 0.0412, -0.0022},
{ 0.0297, -0.0248},
{-0.0094, -0.0371},
{ 0.0006, -0.0011},
{-0.0289, -0.0211},
{-0.0136, -0.0024},
{ 0.0542, 0.0283},
{ 0.0301, 0.0021},
{-0.0481, 0.0522},
{ 0.0172, -0.0095},
{-0.0005, 0.0299},
{-0.0340, -0.0103},
{ 0.0112, 0.0444},
{ 0.0402, 0.0411},
{ 0.0092, -0.0158},
{-0.0350, -0.0197},
{ 0.0266, 0.0286},
{ 0.0165, 0.0005},
{ 0.0412, -0.0363},
{-0.0228, 0.0187},
{ 0.0023, -0.0446},
{ 0.0314, 0.0175},
{-0.0130, -0.0330},
{ 0.0403, -0.0522},
{ 0.0344, -0.0209},
{ 0.0193, -0.0485},
{-0.0276, 0.0431},
{-0.0110, -0.0329},
{ 0.0168, -0.0083},
{-0.0506, 0.0456},
{-0.0378, -0.0376},
{-0.0489, 0.0252},
{-0.0026, -0.0489},
{-0.0338, 0.0360},
{ 0.0343, -0.0434},
{-0.0333, -0.0264},
{ 0.0110, -0.0542},
{-0.0426, 0.0391},
{-0.0456, 0.0297},
{-0.0255, -0.0403},
{ 0.0287, 0.0105},
{-0.0159, 0.0267},
{ 0.0391, -0.0280},
{ 0.0408, -0.0497},
{-0.0244, 0.0526},
{-0.0144, 0.0536},
{ 0.0257, 0.0288},
{ 0.0331, 0.0131},
{-0.0210, -0.0152},
{-0.0471, 0.0228},
{-0.0472, 0.0436},
{ 0.0490, 0.0417},
{-0.0428, 0.0006},
{ 0.0459, 0.0041},
{ 0.0349, 0.0072},
{ 0.0459, 0.0081},
{ 0.0080, 0.0301},
{-0.0219, 0.0100},
{ 0.0333, -0.0603},
{-0.0001, -0.0513},
{ 0.0306, 0.0298},
{-0.0280, 0.0545},
{-0.0039, 0.0498},
{-0.0035, -0.0436},
{ 0.0174, 0.0272},
{-0.0393, -0.0011},
{-0.0428, -0.0163},
{ 0.0121, 0.0407},
{ 0.0352, 0.0324},
{-0.0504, 0.0330}
};
double[][] dat = swissroll.toArray(new double[swissroll.size()][]);
double[][] data = new double[1000][];
System.arraycopy(dat, 0, data, 0, data.length);
LLE lle = new LLE(data, 2, 7);
double[][] coords = lle.getCoordinates();
for (int i = 0; i < points.length; i++) {
for (int j = 0; j < points[0].length; j++) {
assertEquals(Math.abs(points[i][j]), Math.abs(coords[i][j]), 1E-4);
}
}
}
}
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