Allows users to enter mean estimated proportions and a standard deviation term so that useful prior distributions
can be enterred into the
A list containing some or all of the following parts: targets, sources, corrections,
PATH, TITLE, numgroups, numdata, numsources, numiso, SHOULDRUN, GRAPHSONLY, EXIT, and output. For more details
of these inputs see the
Uses standard results from the Dirichlet distibution to turn the estimated mean proportions M[i] and a variance term V to give the estimated parameters a[i] via:
a[i] = M[i] ( (M (1-M))/V - 1 )
Note that V can be given for any of the k sources.