[R] accessing dimension names

[Moshe Olshansky]

To access your dimension idx you could do either
assign("a",paste("dimnames(y)$x",idx,sep=""))
or
eval(parse(text=paste("a<-dimnames(y)$x",idx,sep="")))

--- born.to.b.wyld at gmail.com wrote:

> I have a matrix y:
> 
> > dimnames(y)
> $x93
> [1] "1" "2"
> 
> $x94
> [1] "0" "1" "2"
> .................. so on  (there are other
> dimensions as well)
> 
> 
> 
> I need to access a particular dimension, but a
> random mechanism tells me
> which dimension it would. So, sometimes I might need
> to access
> dimnames(y)$x93, some other time it would be
> dimnames(y)$x94.. and so on.
> Now let that random dimension be idx, then
> dimnames(y)$paste('x',idx,sep='')
> doesn't work.
> 
> Can anyone help?
> 
> Thanks!
> 
> 	[[alternative HTML version deleted]]
> 
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