Re: [R] denoting post-hoc test differences using letters

From: Dennis Murphy <djmuser_at_gmail.com>
Date: Mon, 23 May 2011 15:40:00 -0700

Hi:

Perhaps the cld() function in the multcomp package is what you're looking for.

Dennis

On Mon, May 23, 2011 at 9:40 AM, Adrienne Keller <adrienne.keller_at_umontana.edu> wrote:
> Is there code in R to automatically assign letters to different groups that
> are found to be statistically significant using a post-hoc test following an
> ANOVA? For example, let's say I found that relative rates of tree growth
> were statistically significant between tree species using an ANOVA and then
> I ran a TukeyHSD post-hoc test to determine which species were statistically
> different from one another. I can manually assign different letters for each
> species that is different from another, but is there code to do this
> automatically in R. I would like to add these letters to a table, but have
> many different ANOVAs and doing this manually will be quite time consuming.
>
> Thanks,
>
> Adrienne
>
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>



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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. Received on Mon 23 May 2011 - 23:08:21 GMT

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