wkcn commented on issue #16014: NumPy-compatible Mean, Std and Var URL: https://github.com/apache/incubator-mxnet/pull/16014#issuecomment-526845577 Hi @haojin2 @reminisce , I have a question: do we need Welford algorithm to compute the variance? "It is often useful to be able to compute the variance in a single pass, inspecting each value x_i only once" https://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
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