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brycebaril / node-stats-lite

A light statistical package that operates on Arrays.
MIT License
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Mean should return undefined when array is empty #12

Open Odonno opened 5 years ago

Odonno commented 5 years ago

Indead, I suppose that when mean is used with an empty array, it divides by 0 and so it returns NaN. I think it would be more appropriate to return undefined when we cannot execute the calculation.