de.lmu.ifi.dbs.elki.math.statistics.distribution.Distribution.toString()方法的使用及代码示例

x33g5p2x  于2022-01-18 转载在 其他  
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本文整理了Java中de.lmu.ifi.dbs.elki.math.statistics.distribution.Distribution.toString()方法的一些代码示例，展示了Distribution.toString()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Distribution.toString()方法的具体详情如下：
包路径：de.lmu.ifi.dbs.elki.math.statistics.distribution.Distribution
类名称：Distribution
方法名：toString

Distribution.toString介绍

[英]Describe the distribution
[中]描述分布情况

代码示例

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki-core-math

/**
 * Test the quality of a fit.
 * 
 * @param x Input data
 * @param test Scratch space for testing (will be overwritten!)
 * @param dist Distribution
 * @return K-S-Test score
 * @throws ArithmeticException
 */
private static double testFit(double[] x, double[] test, Distribution dist) throws ArithmeticException {
 for(int i = 0; i < test.length; i++) {
  double v = dist.cdf(x[i]);
  if(Double.isNaN(v)) {
   throw new ArithmeticException("Got NaN after fitting " + dist.toString());
  }
  test[i] = (v >= 1.) ? 1 : (v <= 0.) ? 0. : v;
 }
 Arrays.sort(test); // Supposedly not necessary, but to be safe.
 return KolmogorovSmirnovTest.simpleTest(test);
}

代码示例来源：origin: elki-project/elki

/**
 * Test the quality of a fit.
 * 
 * @param x Input data
 * @param test Scratch space for testing (will be overwritten!)
 * @param dist Distribution
 * @return K-S-Test score
 * @throws ArithmeticException
 */
private static double testFit(double[] x, double[] test, Distribution dist) throws ArithmeticException {
 for(int i = 0; i < test.length; i++) {
  double v = dist.cdf(x[i]);
  if(Double.isNaN(v)) {
   throw new ArithmeticException("Got NaN after fitting " + dist.toString());
  }
  test[i] = (v >= 1.) ? 1 : (v <= 0.) ? 0. : v;
 }
 Arrays.sort(test); // Supposedly not necessary, but to be safe.
 return KolmogorovSmirnovTest.simpleTest(test);
}

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki

/**
 * Test the quality of a fit.
 * 
 * @param x Input data
 * @param test Scratch space for testing (will be overwritten!)
 * @param dist Distribution
 * @return K-S-Test score
 * @throws ArithmeticException
 */
private double testFit(double[] x, double[] test, Distribution dist) throws ArithmeticException {
 for(int i = 0; i < test.length; i++) {
  test[i] = dist.cdf(x[i]);
  if(test[i] > 1.) {
   test[i] = 1.;
  }
  if(test[i] < 0.) {
   test[i] = 0.;
  }
  if(Double.isNaN(test[i])) {
   throw new ArithmeticException("Got NaN after fitting " + dist.toString());
  }
 }
 // Should actually be sorted already...
 Arrays.sort(test);
 return KolmogorovSmirnovTest.simpleTest(test);
}

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki-core-math

/**
  * Test the goodness of fit, keep the best.
  * 
  * @param est Estimator
  * @param d Distribution
  */
 public void test(DistributionEstimator<?> est, Distribution d) {
  double score = testFit(x, scratch, d);
  if(LOG.isDebuggingFine()) {
   LOG.debugFine(est.getClass().getSimpleName() + ": " + score + " " + d.toString());
  }
  if(score < this.score) {
   this.dist = d;
   this.score = score;
   this.est = est;
  }
 }
}

代码示例来源：origin: elki-project/elki

/**
  * Test the goodness of fit, keep the best.
  * 
  * @param est Estimator
  * @param d Distribution
  */
 public void test(DistributionEstimator<?> est, Distribution d) {
  double score = testFit(x, scratch, d);
  if(LOG.isDebuggingFine()) {
   LOG.debugFine(est.getClass().getSimpleName() + ": " + score + " " + d.toString());
  }
  if(score < this.score) {
   this.dist = d;
   this.score = score;
   this.est = est;
  }
 }
}

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki

test[i] = dist.cdf(col.get(i).doubleValue(d));
  if(Double.isNaN(test[i])) {
   LOG.warning("Got NaN after fitting " + est.toString() + ": " + dist.toString());
   continue trials;
   LOG.warning("Got infinite value after fitting " + est.toString() + ": " + dist.toString());
   continue trials;
 double q = KolmogorovSmirnovTest.simpleTest(test);
 if(LOG.isVeryVerbose()) {
  LOG.veryverbose("Estimator " + est.toString() + " (" + dist.toString() + ") has maximum deviation " + q + " for dimension " + d);
LOG.verbose("Best fit for dimension " + d + ": " + best.toString());

代码示例来源：origin: elki-project/elki

test[i] = dist.cdf(col.get(i).doubleValue(d));
  if(Double.isNaN(test[i])) {
   LOG.warning("Got NaN after fitting " + est.toString() + ": " + dist.toString());
   continue trials;
   LOG.warning("Got infinite value after fitting " + est.toString() + ": " + dist.toString());
   continue trials;
 double q = KolmogorovSmirnovTest.simpleTest(test);
 if(LOG.isVeryVerbose()) {
  LOG.veryverbose("Estimator " + est.toString() + " (" + dist.toString() + ") has maximum deviation " + q + " for dimension " + d);
LOG.verbose("Best fit for dimension " + d + ": " + best.toString());

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki

test[i] = dist.cdf(castColumn.get(i).doubleValue(d));
  if(Double.isNaN(test[i])) {
   LOG.warning("Got NaN after fitting " + est.toString() + ": " + dist.toString());
   continue trials;
   LOG.warning("Got infinite value after fitting " + est.toString() + ": " + dist.toString());
   continue trials;
 double q = KolmogorovSmirnovTest.simpleTest(test);
 if(LOG.isVeryVerbose()) {
  LOG.veryverbose("Estimator " + est.toString() + " (" + dist.toString() + ") has maximum deviation " + q + " for dimension " + d);
LOG.verbose("Best fit for dimension " + d + ": " + best.toString());

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki

for(int i = 0; i < cursclus.getDim(); i++) {
 Distribution gen = cursclus.getDistribution(i);
 outStream.append("##   ").append(gen.toString()).append(LINE_SEPARATOR);

代码示例来源：origin: elki-project/elki

for(int i = 0; i < cursclus.getDim(); i++) {
 Distribution gen = cursclus.getDistribution(i);
 outStream.append("##   ").append(gen.toString()).append(LINE_SEPARATOR);

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki-data-generator

for(int i = 0; i < cursclus.getDim(); i++) {
 Distribution gen = cursclus.getDistribution(i);
 outStream.append("##   ").append(gen.toString()).append(LINE_SEPARATOR);

代码示例来源：origin: elki-project/elki

Distribution dist = findBestFit(castColumn, adapter, d, test);
if(LOG.isVerbose()) {
 LOG.verbose("Best fit for dimension " + d + ": " + dist.toString());

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki-input

Distribution dist = findBestFit(castColumn, adapter, d, test);
if(LOG.isVerbose()) {
 LOG.verbose("Best fit for dimension " + d + ": " + dist.toString());

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki

double score = testFit(x, scratch, d);
 if(LOG.isDebuggingFine()) {
  LOG.debugFine(est.getClass().getSimpleName() + ": " + score + " " + d.toString());
 double score = testFit(x, scratch, d);
 if(LOG.isDebuggingFine()) {
  LOG.debugFine(est.getClass().getSimpleName() + ": " + score + " " + d.toString());
  double score = testFit(x, scratch, d);
  if(LOG.isDebuggingFine()) {
   LOG.debugFine(est.getClass().getSimpleName() + ": " + score + " " + d.toString());
 double score = testFit(x, scratch, d);
 if(LOG.isDebuggingFine()) {
  LOG.debugFine(est.getClass().getSimpleName() + ": " + score + " " + d.toString());
 double score = testFit(x, scratch, d);
 if(LOG.isDebuggingFine()) {
  LOG.debugFine(est.getClass().getSimpleName() + ": " + score + " " + d.toString());
 double score = testFit(x, scratch, d);
 if(LOG.isDebuggingFine()) {
  LOG.debugFine(est.getClass().getSimpleName() + ": " + score + " " + d.toString());
 double score = testFit(x, scratch, d);
 if(LOG.isDebuggingFine()) {
  LOG.debugFine(est.getClass().getSimpleName() + ": " + score + " " + d.toString());
LOG.veryverbose("Best distribution fit: " + bestscore + " " + best.toString() + " via " + bestest);

代码示例来源：origin: elki-project/elki

public void checkPDF(Distribution d, String key, double err) {
 // Also check that toString is meaningful.
 assertEquals("No meaningful toString()", -1, d.toString().indexOf('@'));
 double[] data = this.data.get(key);
 assertNotNull("Key not in test data: " + key, data);
 assertEquals("Not NaN for NaN", Double.NaN, d.pdf(Double.NaN), 0.);
 assertEquals("Not zero at neginf", 0., d.pdf(Double.NEGATIVE_INFINITY), 0.);
 assertEquals("Not zero at almost neginf", 0., d.pdf(-Double.MAX_VALUE), 0.);
 assertEquals("Not zero at posinf", 0., d.pdf(Double.POSITIVE_INFINITY), 0.);
 assertEquals("Not zero at almost posinf", 0., d.pdf(Double.MAX_VALUE), 0.);
 int maxerrlev = -15;
 for(int i = 0; i < data.length;) {
  double x = data[i++], exp = data[i++];
  double val = d.pdf(x);
  if(val == exp) {
   continue;
  }
  double diff = Math.abs(val - exp);
  final int errlev = (int) Math.ceil(Math.log10(diff / exp));
  maxerrlev = Math.max(errlev, maxerrlev);
  if(diff < err || diff / exp < err) {
   continue;
  }
  assertEquals("Error magnitude: 1e" + errlev + " at " + x, exp, val, err);
 }
 int given = (int) Math.floor(Math.log10(err * 1.1));
 assertTrue("Error magnitude is not tight: measured " + maxerrlev + " specified " + given, given <= maxerrlev);
}

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