[R] Good practice for data() for R-packages

[Uwe Ligges]

On 05.03.2013 11:21, Johannes Radinger wrote:
> Hi,
>
> I am compiling a R-package and have two tables (.rda files) that are used
> by the functions in my package. In the manual for ?data
> (http://stat.ethz.ch/R-manual/R-patched/library/utils/html/data.html),
> there is a chapter on good practice for such "sysdata"..
>
> However what is not clear to me yet:
>
> 1) Probably I need to do the second approach:
> "For objects which are system data, for example lookup tables used in
> calculations within the function, use a file ‘R/sysdata.rda’ in the
> package sources or create the objects by R code at package
> installation time."
> But what if I have two rda-files? Is the "sysdata.rda" a fixed name
> (name convention)?


But both objects into the same rda file.

> 2) How should these rda-table be used/loaded in the package functions?
> is data() still working/okay?

The objects will be available in your NAMESPACE.

Best,
Uwe ligges

>
> /johannnes
>
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