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 Kyma Forum
 Tips & Techniques
 not quite random
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phillipm Member |
posted 03 June 2013 14:20
 
I am looking for a way to generate a not-quite-random series of numbers. Specifically, I want to randomly choose between 9 possible integers (0 1 2 3 4 5 6 7 8) ... that's the easy part. BUT ... I never want the same number twice in a row. With such a small universe of random numbers to choose from, this happens quite a lot with true random selection. I've run into this situation before always resorted to a "brute force" solution of some sort. But I'd like to figure out a true solution this time, if possible. (Sheesh ... someday I hope I will actually learn smalltalk/capytalk. Maybe when I retire.) IP: Logged |
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SSC Administrator |
posted 03 June 2013 17:05
If you always add a random amount to your previous selection, and you make sure that the amount you're adding is never 0, then it should give you a sequence without repeats. code: By adding a random integer from 1 to 8 to your previous value you should avoid repeating a number. Then you could take the new sum modulo 9 to keep it within the range you specified. IP: Logged |
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JulianLeviston Member |
posted 22 November 2013 02:31
Carla, do you keep these examples and add them to the expressions library on next release? I reckon that'd be an awesome thing, coz this would be a prime candidate, no?  IP: Logged |
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SSC Administrator |
posted 22 November 2013 09:14
Thanks, Julian, that's a great idea! Now just have to figure out which category it belongs under... IP: Logged |
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