Please do check the Intro to R manual.


Hint:  section 2.7.3
**

   1.

   *A vector of negative integral quantities*. Such an index vector
   specifies the values to be *excluded* rather than included. Thus

             > y <- x[-(1:5)]


   gives y all but the first five elements of x.



On Thu, Mar 11, 2010 at 6:22 AM, ManInMoon <xmoon2000@googlemail.com> wrote:

>
> This does what I was hoping it would:
>
> aggregate(tm[,-1],by=list(tm[,10]),FUN="mean")
>
> but I don't know what "tm[,-1]" means (well - the -1 bit anyway.
>
> Does it somehow means the whole matrix?
>
>
>
> Please don't tell me to check the manual - I tried and failed dismally...
>
>
> --
> View this message in context:
> http://n4.nabble.com/tm-1-tp1588804p1588804.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> 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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