Paul Johnson wrote:
...
We used the fine foreign library to bring in an SPSS dataset that was about 9 megabytes and I can squeeze it into a much smaller R object using compression with

save(ndat, file="NatAnnES2000.rda", compress=T).
...
how do people put in the meta information that appears in the right side of the data() output, as in:

Data sets in package '.':

NatAnnES2000 Data sets in package 'base':

Formaldehyde            Determination of Formaldehyde
HairEyeColor            Hair and Eye Color of Statistics Students
...

The meta information is from the documentation, such as help(Formaldehyde). prompt(NatAnnES2000) will create a template .Rd file in R's working directory for the data frame (their doc standards are slightly different to functions). Fill in the blanks, and copy to the man/ subdirectory of your package.


Are there other attributes that I should specify if I want to package an .rda file for other users?

Just documenting it works for me. Rcmd CHECK or R CMD CHECK will grumble if there's something you've forgotten to document.


An rda file created in this way will translate across platforms, won't it?

Not sure about the compression; otherwise, yes.


Cheers

Jason
--
Indigo Industrial Controls Ltd.
http://www.indigoindustrial.co.nz
64-21-343-545
[EMAIL PROTECTED]

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