@Test
public void testAnalyze() {
double[][] results = new double[10][2];
for (int i = 0; i < results.length; i++) {
results[i][0] = i;
results[i][1] = i + 1;
}
RegressionResultAnalyzer analyzer = new RegressionResultAnalyzer();
analyzer.setInstances(results);
String analysis = analyzer.toString();
assertArrayEquals(new double[]{1.0, 1.0, 1.0}, parseAnalysis(analysis), 0);
for (int i = 0; i < results.length; i++) {
results[i][1] = Math.sqrt(i);
}
analyzer = new RegressionResultAnalyzer();
analyzer.setInstances(results);
analysis = analyzer.toString();
assertArrayEquals(new double[]{0.9573, 2.5694, 3.2848}, parseAnalysis(analysis), 0);
for (int i = 0; i < results.length; i++) {
results[i][0] = results.length - i;
}
analyzer = new RegressionResultAnalyzer();
analyzer.setInstances(results);
analysis = analyzer.toString();
assertArrayEquals(new double[]{-0.9573, 4.1351, 5.1573}, parseAnalysis(analysis), 0);
}