good chemistry is complicated, and a little bit messy LW 

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( #3333=superdoc: print w/ replies, xml )  Need Help?? 
Thanks. I will give it a try. There is a point of misunderstanding, though, and that is I am aiming for a sample of random sequences. Each sequence would be five to ten characters, but the sample would be comprised of a few million such sequences. Thus, if my sample size is ten million strings, and each string is ten characters, and there are a million valid utf8 characters, the each character would be in the sample an average of 100 times. It is a statistical approach; each item in the sample has just a tiny portion of all possible values, but the whole sample includes all possible values multiple times. I tend to be a bit thorough when testing code I am not familiar with (my code for computing eigensystems of general matrices was testing on 100 million randomly generated matrices  with not one failure BTW). Thanks again. Ted In reply to Re^2: How to generate random sequence of UTF8 characters
by ted.byers

