[R] dynamic object names?

[John Charles Considine]

On Mon, 2005-09-19 at 11:38 +0200, Uwe Ligges wrote:
> samir at 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
Samir,
In addition to the other comments, part of the problem may be that you
can't assign the character '_' to standard objects.  Could you use '.'
instead?

JC 

> > 
> > 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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> 
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