/**
* Calculate Cumulative Cauchy distribution function.
*
* @return the probability that a stochastic variable x is less than X
* @author Klaus Meffert
* @since 1.1
*/
public double nextCauchy() {
return 0.5 + Math.atan((m_rn.nextDouble() - m_location) / m_scale) / Math.PI;
}
/**
* When deserializing, initialize the seed because otherwise we could get duplicate evolution
* results when doing distributed computing!
*
* @param a_inputStream the ObjectInputStream provided for deserialzation
* @throws IOException
* @throws ClassNotFoundException
* @author Klaus Meffert
* @since 3.01
*/
private void readObject(ObjectInputStream a_inputStream)
throws IOException, ClassNotFoundException {
// always perform the default de-serialization first
a_inputStream.defaultReadObject();
m_rn.setSeed(System.currentTimeMillis());
}