Hello again, I want to create a hidden markov model with an alphabet of (at least) 128 values (it has nothing to do with bioinformatics). I started with the hmm demo (graph_hmm.cpp). But how can I define this new alphabet type? Viele Grüße, Konstantin -- GMX DSL SOMMER-SPECIAL: Surf & Phone Flat 16.000 für nur 19,99 Euro/mtl.!* http://portal.gmx.net/de/go/dsl