[R] can lm() automatically take in the independent variables without knowing the names in advance

[Gabor Grothendieck]

Try this:


run.lm <- function(DF, response = names(DF)[1], fo = y~.) {
	fo[[2]] <- as.name(response)
	eval(substitute(lm(fo, DF)))
}

# test
run.lm(iris)
run.lm(iris, "Sepal.Width")


Another possibility is to rename the first column:

On 10/7/06, HelponR <suncertain at gmail.com> wrote:
> Hello!
>
> I am trying to use lm to do a simple regression but on a batch of
> different files.
>
> Each file has different column names.
>
> I know the first column is the dependent variable and all the rest are
> explanatory variables.
>
> The column names are in the first line of the file.
>
> But it seems lm() requires I know the variable names in advance?
>
> Is there a way to dynamically read in variable names and send to lm()?
>
> Many many thanks!!!
>
>
> Urania
>
>        [[alternative HTML version deleted]]
>
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