The kurt function seems to support only unbiased estimation while the kurtosis function returns a biased result by default. How to make the kurt result in pandas consistent with that of kurtosis(biased=true) in DolphinDB?
What is the difference between the kurtosis function in DolphinDB and the kurt function in pandas?
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The
kurtosisfunction in DolphinDB returns a biased result by default (biased = true), while in pandas it returns an unbiased result, and the kurtosis value “3” of the normal distribution is subtracted.In Python, you can use
scipy.stats.kurtosis(x, fisher=False)to achieve the behavior ofkurtosis(x)in DolphinDB.