23 lines
584 B
Text
23 lines
584 B
Text
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F sd_mean(numbers)
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V mean = sum(numbers) / numbers.len
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V sd = (sum(numbers.map(n -> (n - @mean) ^ 2)) / numbers.len) ^ 0.5
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R (sd, mean)
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F histogram(numbers)
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V h = [0] * 10
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V maxwidth = 50
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L(n) numbers
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h[Int(n * 10)]++
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V mx = max(h)
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print()
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L(i) h
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print(‘#.1: #.’.format(L.index / 10, ‘+’ * (i * maxwidth I/ mx)))
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print()
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L(i) (1, 5)
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V n = (0 .< 10 ^ i).map(j -> random:())
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print("\n####\n#### #. numbers\n####".format(10 ^ i))
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V (sd, mean) = sd_mean(n)
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print(‘ sd: #.6, mean: #.6’.format(sd, mean))
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histogram(n)
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