R help - Jun 2009 - Good Programming Practice Question - Functions in Different Files

I've gotten to the point wih an R script where I would like to encapsulate
several blocks of codes in R functions.

In order to keep the top level script simple I would like to put them in a
separate file.  This should help the readability of the top level main script.

Is source(...) the best way to load those functions in the top level script?  

For example, in the top level script
Line#
01  source("FunctionsFile.R")
02
03  callfunctionfromfunctionfile(...)

Thanks for any feedback and insights. 

Also, I found the following:
http://www.stat.auckland.ac.nz/~paul/ItDT/HTML/node71.html

But are there other guides out there that speak to good practices when
developing in R?

Hi,

I always use source for this kinds of things. If you have a lot of code, 
you could consider wrapping it into an R-package. This would allow you 
to load all the code by using the library(myPackage) command. But this 
might be unnecessary for your situation.

cheers,
Paul

Jason Rupert wrote:
> I've gotten to the point wih an R script where I would like to
encapsulate several blocks of codes in R functions.
>
> In order to keep the top level script simple I would like to put them in a
separate file.  This should help the readability of the top level main script.
>
> Is source(...) the best way to load those functions in the top level
script?
>
> For example, in the top level script
> Line#
> 01  source("FunctionsFile.R")
> 02
> 03  callfunctionfromfunctionfile(...)
>
> Thanks for any feedback and insights. 
>
> Also, I found the following:
> http://www.stat.auckland.ac.nz/~paul/ItDT/HTML/node71.html
>
> But are there other guides out there that speak to good practices when
developing in R?
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>   

-- 
Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
Heidelberglaan 2
P.O. Box 80.115
3508 TC Utrecht
Phone:  +3130 274 3113 Mon-Tue
Phone:  +3130 253 5773 Wed-Fri
http://intamap.geo.uu.nl/~paul