0  OK
1  phase number not between 1 and 5
2  index to groups must be supplied as line number for file groups.txt
3  index to groups must be integer (line number for file groups.txt)
4  index to groups must be between 1 and number of lines in groups.txt
5  no bic RData files found
6  index to MCMC runs must be supplied
7  index to groups must be integer
8  index to groups must be between 1 and nruns
9  no mcmc RData files found
10 number of MCMC runs does not match nruns