    MIX-CASES:  Generate cases from a mixture model.

    Mix-cases produces a data file containing the target values for cases
    generated from a mixture model.  The components associated with these
    cases, the parameters associated with these components, and the
    top-level hyperparameters, may optionally be displayed as well.

    Usage:

        mix-cases [ -h ] [ -p ] [ -i ] log-file index
                  output-file n-cases [ random-seed ]

    Values for the targets in n-cases cases are generated and stored in
    the specified output file, one per line, overwriting any data it
    previously contained.  If no training data has been specified, the
    generated cases will come from the prior distribution conditional on
    the hyperparameters stored in the log file under the specified index.
    If training data has been supplied, the cases will be generated from
    the posterior distribution given the training data, as represented by
    the hyperparameters, parameters and component indicators that are
    stored under that index.

    The random number seed used for generating the cases may be specified
    at the end of the command line.  If it is omitted, index is used as
    the seed.

    If one or more of the -h, -p, or -i flags are specified, the
    hyperparameters, parameters, or component indicators will be displayed
    on standard output, in the format documented in mix-display.doc, with
    the newly generated cases following the training cases (if any).  By
    default, none of this information is displayed.

                Copyright (c) 1995-2003 by Radford M. Neal