Welch's t-test: Difference between revisions

Welch's t-test (view source)

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mean1==mean2 is not necessary (will lead to x=1 in betain, which will return 1) + n1<=1 or n2<=1 is actually an error

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Revision as of 21:56, 12 March 2018 (view source) Eoraptor (talk \| contribs) m (→‎Using betain from AS 63) ← Older edit		Revision as of 22:00, 12 March 2018 (view source) Eoraptor (talk \| contribs) (mean1==mean2 is not necessary (will lead to x=1 in betain, which will return 1) + n1<=1 or n2<=1 is actually an error) Newer edit →
Line 1,297: n2 = len(a2) if n1 <= 1 or n2 <= 1: ~~return~~raise ~~1.0~~ValueError mean1 = sum(a1) / n1 mean2 = sum(a2) / n2 ~~if mean1 == mean2:~~ ~~return 1.0~~ var1 = sum((x - mean1)**2 for x in a1) / (n1 - 1)