[R] assign names to matrix

[Uwe Ligges]

On Thu, 16 Nov 2000 Pan_Yuming at aam.de wrote:

> 
> Thanks for your advice.
> 
> My interest is to how to refer to each column as if it is a variable. i
> solved this problem by
> dimnames(v) <- list(1:nrow(v),label)
> v <- as.data.frame(v)
> 
> now i can refer to column 1 of v as v$A...

That's not neccessary.

Why don't you use:  
matrixname[,colname]

e.g.:
 my.matrix <- matrix(1:16, nrow=4)
 my.matrix
 my.matrix[,1] 


Uwe Ligges

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