| dewens | Probability mass function for the Ewens distribution |
| dewens_k | Probability mass function for the number of classes from a Ewens distribution |
| ewens_k_exact | Calculate expected number of classes in a sample of size n given theta |
| ewens_mle | Maximum likelihood estimate of theta given sample vector with class memberships |
| gcrp | Draw from a generalized Chinese Restaurant Process |
| rewens | Draw from the Ewens distribution |
| rgem | Draw from the Griffiths-Engen-McCloskey distribution |