本文整理了Java中org.apache.commons.math3.random.RandomDataGenerator.nextSample方法的一些代码示例，展示了RandomDataGenerator.nextSample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。RandomDataGenerator.nextSample方法的具体详情如下：
包路径：org.apache.commons.math3.random.RandomDataGenerator
类名称：RandomDataGenerator
方法名：nextSample

RandomDataGenerator.nextSample介绍

[英]This method calls #nextPermutation(int,int)in order to sample the collection.
[中]此方法调用#nextpermutate（int，int）以对集合进行采样。

代码示例

代码示例来源：origin: org.apache.commons/commons-math3

/**
 * {@inheritDoc}
 *
 * <p>
 * <strong>Algorithm Description</strong>: Uses a 2-cycle permutation
 * shuffle to generate a random permutation of <code>c.size()</code> and
 * then returns the elements whose indexes correspond to the elements of the
 * generated permutation. This technique is described, and proven to
 * generate random samples <a
 * href="http://www.maths.abdn.ac.uk/~igc/tch/mx4002/notes/node83.html">
 * here</a>
 * </p>
 */
public Object[] nextSample(Collection<?> c, int k)
  throws NotStrictlyPositiveException, NumberIsTooLargeException {
  return delegate.nextSample(c, k);
}

代码示例来源：origin: io.virtdata/virtdata-lib-realer

/**
 * {@inheritDoc}
 *
 * <p>
 * <strong>Algorithm Description</strong>: Uses a 2-cycle permutation
 * shuffle to generate a random permutation of <code>c.size()</code> and
 * then returns the elements whose indexes correspond to the elements of the
 * generated permutation. This technique is described, and proven to
 * generate random samples <a
 * href="http://www.maths.abdn.ac.uk/~igc/tch/mx4002/notes/node83.html">
 * here</a>
 * </p>
 */
public Object[] nextSample(Collection<?> c, int k)
  throws NotStrictlyPositiveException, NumberIsTooLargeException {
  return delegate.nextSample(c, k);
}

代码示例来源：origin: geogebra/geogebra

/**
 * {@inheritDoc}
 *
 * <p>
 * <strong>Algorithm Description</strong>: Uses a 2-cycle permutation
 * shuffle to generate a random permutation of <code>c.size()</code> and
 * then returns the elements whose indexes correspond to the elements of the
 * generated permutation. This technique is described, and proven to
 * generate random samples <a
 * href="http://www.maths.abdn.ac.uk/~igc/tch/mx4002/notes/node83.html">
 * here</a>
 * </p>
 */
public Object[] nextSample(Collection<?> c, int k)
  throws NotStrictlyPositiveException, NumberIsTooLargeException {
  return delegate.nextSample(c, k);
}

代码示例来源：origin: org.apache.accumulo/accumulo-test

private void changeTableSetting(RandomDataGenerator random, State state, Environment env,
  Properties props) throws Exception {
 // pick a random property
 int choice = random.nextInt(0, tableSettings.length - 1);
 Setting setting = tableSettings[choice];
 // pick a random table
 SortedSet<String> tables = env.getConnector().tableOperations().list().tailSet("ctt")
   .headSet("ctu");
 if (tables.isEmpty())
  return;
 String table = random.nextSample(tables, 1)[0].toString();
 // generate a random value
 long newValue = random.nextLong(setting.min, setting.max);
 state.set(LAST_TABLE_SETTING, table + "," + choice);
 log.debug("Setting " + setting.property.getKey() + " on table " + table + " to " + newValue);
 try {
  env.getConnector().tableOperations().setProperty(table, setting.property.getKey(),
    "" + newValue);
 } catch (AccumuloException ex) {
  if (ex.getCause() instanceof ThriftTableOperationException) {
   ThriftTableOperationException ttoe = (ThriftTableOperationException) ex.getCause();
   if (ttoe.type == TableOperationExceptionType.NOTFOUND)
    return;
  }
  throw ex;
 }
}

代码示例来源：origin: org.apache.accumulo/accumulo-test

private void changeNamespaceSetting(RandomDataGenerator random, State state, Environment env,
  Properties props) throws Exception {
 // pick a random property
 int choice = random.nextInt(0, tableSettings.length - 1);
 Setting setting = tableSettings[choice];
 // pick a random table
 SortedSet<String> namespaces = env.getConnector().namespaceOperations().list().tailSet("nspc")
   .headSet("nspd");
 if (namespaces.isEmpty())
  return;
 String namespace = random.nextSample(namespaces, 1)[0].toString();
 // generate a random value
 long newValue = random.nextLong(setting.min, setting.max);
 state.set(LAST_NAMESPACE_SETTING, namespace + "," + choice);
 log.debug(
   "Setting " + setting.property.getKey() + " on namespace " + namespace + " to " + newValue);
 try {
  env.getConnector().namespaceOperations().setProperty(namespace, setting.property.getKey(),
    "" + newValue);
 } catch (AccumuloException ex) {
  if (ex.getCause() instanceof ThriftTableOperationException) {
   ThriftTableOperationException ttoe = (ThriftTableOperationException) ex.getCause();
   if (ttoe.type == TableOperationExceptionType.NAMESPACE_NOTFOUND)
    return;
  }
  throw ex;
 }
}