Re: [R] Shapiro-Wilk test problem

2010-02-18 Thread Greg Hirson

Trafim,

Could you please provide an example of the data?

I don't believe the sample size to be the driver of the issue you are 
having.


For example,

set.seed(20)
x <- rnorm(100)
shapiro.test(x)

returns no error and a p value of 0.5519.

Sample (or actual) data would be helpful in diagnosing the problem.

Greg

On 2/18/10 6:32 AM, Trafim Vanishek wrote:

Hi everybody,

Does anyone know what problem may be with this test.
I am applying 5 different normality tests and use p-values for them, but for
some reason S-W gives me NA, while sample size is 100.

Any ideas?

Thanks a lot!

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Greg Hirson
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Graduate Student
Agricultural and Environmental Chemistry

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[R] Shapiro-Wilk test problem

2010-02-18 Thread Trafim Vanishek
Hi everybody,

Does anyone know what problem may be with this test.
I am applying 5 different normality tests and use p-values for them, but for
some reason S-W gives me NA, while sample size is 100.

Any ideas?

Thanks a lot!

[[alternative HTML version deleted]]

__
[email protected] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.