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YuvalWein
4cf1d86996
Same as variance explanation, since std = sqrt(variance): When calculation variance we can divide the calculation by N, or by N-1. When calculating sample variance we divide by N-1 (like in the current code).(https://towardsdatascience.com/why-sample-variance-is-divided-by-n-1-89821b83ef6d) Sometimes We want to divide by N like the basis formula, to calculate population variance. (https://en.wikipedia.org/wiki/Variance#Discrete_random_variable) For me its useful to add another parameter that will make it possible to calculate both of then using one function. Is it useful for you?