[R] Simple averaging question

[Ista Zahn]

Assuming the data frame is named "X":

mean(X[c(5,8), "Time"])

See ?'[' for details.

-Ista

On Thu, Jan 7, 2010 at 1:20 PM, lse1986 <sam_eden1986 at yahoo.co.uk> wrote:
>
> I have the following data:
>
> http://i.imagehost.org/0650/Untitled2.jpg
>
> How would i average, say the 5th and the 8th entries?
> Thanks in advance
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-- 
Ista Zahn
Graduate student
University of Rochester
Department of Clinical and Social Psychology
http://yourpsyche.org