On Fri, Mar 11, 2011 at 4:41 PM, Paul Y. Peng <pywp...@gmail.com> wrote:
> I have a text file of R commands. Some times I only want to run a few lines
> of the R commands in an existing R session and wonder whether there is a
> simple way to do this.
>
> To run a few lines in a new session of R, I could use sed to pick up the
> lines from the file and pipe them into R.
>
> source() does not allow me to specify which lines to be included/excluded.
> Is there any function that is similar to source() but allows me to specify
> lines included/excluded?
>

To just source lines 15 through 16 try this:

source(pipe("sed -n 15,16p myfile.R"))


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