Created
March 8, 2014 03:46
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Ordered random sample generator
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| def ordered_sample(population, k): | |
| """ | |
| Generate k-sized ordered random sample of population | |
| Implementation of Kramer algorithm. | |
| """ | |
| x = 0 | |
| size = len(population) | |
| for i in xrange(k): | |
| x = size - int((size - x) * (random.random() ** (1.0 / (k - i)))) | |
| yield population[x] |
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