[R] Long model formulae

[Gabor Grothendieck]

On Sat, Oct 23, 2010 at 9:51 PM, James Hirschorn
<james.hirschorn at hotmail.com> wrote:
>
> What is a good way to enter a very long model formula. For example:
>
> y ~ Input.2 + Input.3 + ... + Input.1000
>
> (assuming the corresponding dataframe has many other columns).
>
> Is there a way to convert a character string to a formula? Are there command line expansions in R besides the simple '.'?
>

If y is in column 1 and Input.2, ..., Input.1000 are in columns 2
through 1000 then try this:

   lm(y ~., DF[1:1000])


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