Perhaps something like this:
Test <- function(m){
m <- if(is.character(m)) get(m) else m
stopifnot(length(colnames(m))>0)
n = colnames(m)
# Process n however
2* m[, n]
}
That make sense?
Hope it helps,
Michael
On Oct 7, 2011, at 11:03 AM, Ana <rrast...@gmail.com> wrote:
> How can I call matrix$col, inside a function?
> The matrix name is one of the variables of the function, while the
> column name I get by assuming that it should have a certain
> characters.
>
> something like this
>
> function(matrix){
> colname=as.name(grep("[A-T a-t]ting",colnames(matrix),value=TRUE))
> output=2*(matrix$colname)
> return(output)
> }
>
> The name of the column is Testing.
>
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> and provide commented, minimal, self-contained, reproducible code.
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