Why do I obtain p=NaN when I perform anovan?

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Simo
Simo on 24 Oct 2014
Commented: Geoff Hayes on 25 Oct 2014
Hi! I have to perform an Anova analysis with ANOVAN: I have column Y to compare with column of numbers g1, g2, g3. they all have the same number of elements.This is my script: p=anovan(Y, {g1, g2, g3}). The result is sum sq. = 0 0 0 mean sq= 0 0 0 P=NaN NaN NaN, F=NaN NaN NaN . I don't understand why.

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