Hello,
That error occurs if you have Inf values in vekkat. Try to see them with
finite <- is.finite(vekkat)
sum(!finite)
If this is not zero, you can fix your test with
kruskal.test(wis1[finite] ~ vekkat[finite])
Hope this helps,
Rui Barradas
Em 10-03-2013 10:37, Adriana ?krin?rov? escreveu:> Hi
>
> I need to test scores from questionnaires ADDQoL by age group by Kruskal
> test. But he wrote me:
>
> kruskal.test (wis1 ~ vekkat)
> Error in kruskal.test.default (c (-2, -4, 0, -1, -1, -3, 0, -4, 0, -1, 0,:
> all group levels must be finite
>
> Vekkat is as.factor and wis1 is as.nuemric
>
> How to remove this error? Please advise me. Thank you
>
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