>>> Birgitle <[EMAIL PROTECTED]> 05/06/2008 10:33:20 >>>
>I think you should specify your grouping factor:
Yes, the message says the grouping factor is missing.
But xx should not be a matrix.
Your x data should be in a (1-dimensional) vector of length 276, and so should
your grouping factor.
i'm trying to test the homogeneity of variance of 92 samples each one
contains 3 observations.
to use bartlett.test function i have created a (3,92) matrix (named xx):
>bartlett.test(xx)
this message appears:
>Erreur dans bartlett.test.default(xx) :
l'argument "g" est manquant, avec aucune va
I think you should specify your grouping factor:
g a vector or factor object giving the group for the corresponding
elements of x. Ignored if x is a list.
batlett.test(xx, groupingfactor)
Hope this helps.
Birgit
hanen wrote:
>
> i'm trying to test the homogeneity of variance of 92 samples
3 matches
Mail list logo
