ASA189
Maximum Likelihood Parameter Estimation
Beta Binomial PDF

ASA189 is a FORTRAN90 library which does a maximum likelihood estimation of the parameters of a Beta Binomial Probability Density Function (PDF), by D Smith.

ASA189 is Applied Statistics Algorithm 189.

This algorithm analyzes data that was generated by a beta binomial probability density function, and tries to estimate the values of the parameters that determing that PDF.

Languages:

ASA189 is available in a FORTRAN90 version.

Author:

Original FORTRAN77 version by D Smith; FORTRAN90 version by John Burkardt.

Reference:

1. D Smith,
   Algorithm AS 189: Maximum Likelihood Estimation of the Parameters of the Beta Binomial Distribution,
   Applied Statistics,
   Volume 32, Number 2, 1983, pages 196-204.

Source Code:

• asa189.f90, the source code;

Examples and Tests:

• asa189_test.f90, a sample problem;
• asa189_test.txt, the output file.

List of Routines:

• BBL calculates the beta binomial log likelihood.
• BBME estimates MU and THETA of the beta binomial distribution.
• BBML estimates the parameters of a beta binomial distribution
• GDER computes derivatives of the log likelihood.
• SET sets up the arrays RL and LM.
• TIMESTAMP prints the current YMDHMS date as a time stamp.

You can go up one level to the FORTRAN90 source codes.