[R] Operator > and <

[John Kane]

mm  <- matrix(1:9, nrow=3) ; mm
subset(mm[,1],mm[,1] <3)  # Note I used 3 not 2 here.

Have a look at some of the introductory documents on 
the R site  ( Contributed documents under OTHER in the
documentation). They should answer a lot of your basic
questions like this.

Documents by Lemon, Maindonald and Verzani are good
places to start.

Also the Introduction to R is useful.


--- Yann Mauon <yann.mauron at genebio.com> wrote:

> 
> Hello, 
> 
> I'am new to the R world and have a lot of question
> but the first is : How to
> deal with <> opertor in table objects? (Or how to
> deal with <> in
> general...) I explain my problem. 
> 
> I read a file with the read.table expression. I then
> obtain a matrix. I read
> the first line for example with the commande
> data[,1]. Then I would like to
> select only the element in this line that are
> greater than 2. Is there an
> elegant way to achieve that ?
> 
> Thanks by advance...
> -- 
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