Created
February 20, 2012 01:55
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Rednsake Trivia: Pick N Random of M without Replacement
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| import random | |
| def fisher_yates(n, m): | |
| ''' | |
| Because | |
| return random.sample(m,n) | |
| would be boring. | |
| ''' | |
| scratch = range(len(m)) | |
| stop = len(scratch) - n | |
| picks = [] | |
| while len(scratch) > stop: | |
| to_pop = random.randint(0, len(scratch) - 1) | |
| picks.append(scratch.pop(to_pop)) | |
| return [m[p] for p in picks] | |
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