R help - Jan 2007 - R modules

Hi All,

I'd like to know what is the best way to organize R code in multiple modules
and files. The R code we are writing is too much for a single file. Besides,
there are a lot of reusable functions we'd like to factor out. But writing a
package for that is quite an over-kill and might be too inflexible.

So what is the best way to organize R code into multiple files and reusable
modules?

Thanks,
Geoffrey



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You could have a master file that sources the rest:

source("A.R")
source("B.R")

or you could save the function in a workspace and just load it back in;
however, at some point I would move that all to a package.  I typically
will create a package for myself even if I have no intention of distributing
it since it nicely puts together all the source and documentation and the
checking tools are helpful to improve the QA.

Its a bit of work to figure it all out the first time but once you
are over that hump its worth it.

On 1/2/07, Geoffrey Zhu <gzhu at peak6.com> wrote:
> Hi All,
>
> I'd like to know what is the best way to organize R code in multiple
modules>  and files. The R code we are writing is too much for a single file.
Besides> , there are a lot of reusable functions we'd like to factor out.
But writing>  a package for that is quite an over-kill and might be too
inflexible.
>
> So what is the best way to organize R code into multiple files and
reusable>  modules?
>
> Thanks,
> Geoffrey
>
>
>
> _______________________________________________________=0A> =0A>
=0A> The information in this email or in any file attached hereto is=0A>
intended only for the personal and confidential use of the individual=0A> or
entity to which it is addressed and may contain information that is=0A>
proprietary and confidential. If you are not the intended recipient of=0A>
this message you are hereby notified that any review, dissemination,=0A>
distribution or copying of this message is strictly prohibited. This communi>
cation is for information purposes only and should not be regarded as an off>
er to sell or as a solicitation of an offer to buy any financial product. Em>
ail transmission cannot be guaranteed to be secure or error-free.
>
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On 1/2/2007 12:46 PM, Geoffrey Zhu wrote:
> Hi All,
> 
> I'd like to know what is the best way to organize R code in multiple
modules>  and files. The R code we are writing is too much for a single file.
Besides> , there are a lot of reusable functions we'd like to factor out.
But writing>  a package for that is quite an over-kill and might be too
inflexible.
> 
> So what is the best way to organize R code into multiple files and
reusable>  modules?
Write a package for it.  It's not overkill, it's using the tools the way
they were designed to be used.

Not all packages need to be submitted to CRAN, you can have a package 
for your own use.  It gives you a way to organize your code and 
documentation, numerous code checking tools, namespaces, all sorts of 
good stuff.

Duncan Murdoch