genmarkov - generates random markov matrix with recurrent and transient classes
Returns in M a random Markov transition probability matrix with size(rec,1) recurrent classes with rec(1),...rec($) entries respectively and tr transient states.
//P has two recurrent classes (with 2 and 1 states) 2 transient states P=genmarkov([2,1],2,'perm') [perm,rec,tr,indsRec,indsT]=classmarkov(P); P(perm,perm)