OK, rather than post new Versions of the code up here, I'll be keeping it up to date on:
http://www.sandma43.fsnet.co.uk/se4code.htm
Note I can't ftp from the office, so updates will be infrequent - one a day at the most.
The Version up there now has new stuff / revised compared to the Last Version posted on this thread. Please revise your codes accordingly. Future Versions will be fully backwards compatible, to avoid confusion and excessive updating on the user's part.
Oh, and I think I got the "X" and "Y" the wrong way round on the new "gender" question. Any geneticists want to confirm that for me?
Typo reports and suggestions for more questions & answers all still welcomed on this thread.
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http://www.sandman43.fsnet.co.uk/se4main.htm
[This message has been edited by dogscoff (edited 22 August 2001).]