11 lines
187 B
Text
11 lines
187 B
Text
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func stddev(x) {
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static(num=0, sum=0, sum2=0)
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num++
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sqrt(
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(sum2 += x**2) / num -
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(((sum += x) / num)**2)
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)
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}
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%n(2 4 4 4 5 5 7 9).each { say stddev(_) }
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