Hmm thanks,
But on the other hand it just says i cant reject normality, which
doesnt really mean it is normal. Wouldn´t be nice to test for non-
normality ? if i´d reject that a high level i could be pretty sure it
´s normal... ??
thanks in advance
matthias
Am 12.07.2008 um 18:10 schrieb Mark Leeds:
Hi: If normality is the HO, then the test below says don't reject
( large p
value ). Check out any multivariate text for what the null of the
shapiro
test is. I don't know for sure but, from below, it sure looks like
HO is
normality. Or google for it.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
] On
Behalf Of Bunny, lautloscrew.com
Sent: Saturday, July 12, 2008 11:30 AM
To: r-help@r-project.org
Subject: [R] shapiro wilk normality test
Hi everybody,
somehow i dont get the shapiro wilk test for normality. i just can´t
find what the H0 is .
i tried :
shapiro.test(rnorm(5000))
Shapiro-Wilk normality test
data: rnorm(5000)
W = 0.9997, p-value = 0.6205
If normality is the H0, the test says it´s probably not normal, doesn
´t it ?
5000 is the biggest n allowed by the test...
are there any other test ? ( i know qqnorm already ;)
thanks in advance
matthias
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