Re: [R] dynamic object names?

From: Uwe Ligges <ligges_at_statistik.uni-dortmund.de>
Date: Mon 19 Sep 2005 - 19:38:02 EST

samir@guidi.ch wrote:

> I am trying to extract data from a matrix. Let's say that i am interested in
> extracting
> rows from a 4x4 matrix. Instead of giving a fix name to these 4 rows I would
> like to add a number to prefix. As result I should get 4 objects named:
>
> prefix_1
> prefix_2
> prefix_3
> prefix_4

>
> I attepted to solve the problem with a loop, but without success. Any hints??

  1. In fact, you do not really want it.
  2. You want to use "<-" rather than "->" for assigments. Reading your code is really hard when you are using this non-conventional way.
  3. In order to answer your question: This is the FAQ "How can I turn a string into a variable?". The posting guide asks you to read these FAQs before sending questions to R-help. Please do so.

Uwe Ligges

>

>>matrix(LETTERS[1:16], ncol=4) -> MM
>>MM

>
> [,1] [,2] [,3] [,4]
> [1,] "A" "E" "I" "M"
> [2,] "B" "F" "J" "N"
> [3,] "C" "G" "K" "O"
> [4,] "D" "H" "L" "P"
>
>
> for (xxx in 1:4) {
> MM[xxx,] -> prefix_xxx;
> }
>
>
> Thanks
>
> samir
>
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R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Wed Sep 21 02:07:50 2005

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