[R] functions and getting them into R

[ripley@stats.ox.ac.uk]

On Mon, 27 May 2002, Guy Forrester wrote:

> Dear All,
>
> I am new to R and can see it is a very powerful and versatile system for
> programming and statistical analysis.
>
> Say I have written a simple function and want to use it on a regular
> basis. I have the file as a text file say 'c:\R-funcs\func.txt' how do I
> get R to find it on the hard disc

source("c:\\R-funcs\\func.txt")

(or replace \\ by /).

> or alternatively where is the default
> location for looking up functions where I can place this file.  eg where
> are functions such as var(), mean() etc stored?

In packages, and the best way of all would be to create a small package
containing your functions.  They you can use

library(mypackage)

to make them available.  But creating a package on Windows is not
for absolute beginners.

> At the moment I'm pasting the text of the function into the GUI prompt,
> not very satisfactory if it is to be used in a programme.
>
> Please forgive any naivety on my part as I am just starting out
>
> Many thanks in advance
>
> Guy
>
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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