Created
January 24, 2013 18:59
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Geometric mean function for python. Takes the nth root of all values in an iterable multiplied together. There might be some issues with this.
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| import operator | |
| def geometric_mean(iterable): | |
| return (reduce(operator.mul, iterable)) ** (1.0/len(iterable)) |
I think that there is a risk of overflow here. The safer way is to log each number, take the arithmetic mean, then anti-log.
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seems reasonable to me. What issues were you expecting?
On python3, I did import functools, functools.reduce(...