It would be helpful to post some actual data.  You can do:

mean(x[x != -1])

On Wed, May 12, 2010 at 8:33 AM, Blue.Egg <avonpfefer@gmail.com> wrote:

>
> I have a some data, and imagine a column of how many parasitic eggs found
> in
> the stool of some children some of the children we do not have this data so
> we put -1 in stead. How can you remove the people with -1, to calculate
> means and do box plots. Thank you!
> --
> View this message in context:
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> Sent from the R help mailing list archive at Nabble.com.
>
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html<http://www.r-project.org/posting-guide.html>
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?

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