[R] Normal distribution

Peter Ehlers ehlers at ucalgary.ca
Thu Oct 1 19:35:40 CEST 2009


Package nortest has 5 tests of normality.

A word of caution: the wording of your question suggests that
you believe that, if the test you use does not reject the
normality hypothesis, you then have proof that your data come
from a Normal distribution. That's *NOT* true. Normality will
still be an *assumption*, albeit perhaps a reasonable one.
This is particularly important to realize if you have small

  -Peter Ehlers

Noela Sánchez wrote:
> Hi,
> I am dealing with how to check in R if some data that I have belongs to a
> normal distribution or not. I am not interested in obtaining the
> theoreticall frequencies. I am only interested in determing if (by means of
> a test as Kolmogorov, or whatever), if my data are normal or not.
> But I have tried with ks.test() and I have not got it.
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