Prof Brian Ripley wrote:
I have been proposing, and may implement as soon as 1.9.0, to process allAn issue related to data files that needs to be reconsidered (IMO) is the fact that data files cannot use functionality defined in the package, according to Writing R Extensions.
the data directory at install time to .rda files in a database (details depend on Luke's final choice of implementation) which is load-on-demand and perhaps unload if not currently used. So it not a good idea to use the data directory for files other than those to be accessed by data().
This is not too serious a problem with S3 classes, but to the limited extent that I understand S4 classes, I think this means that a package cannot have example data in a class stucture that is defined in the package. This will certainly hinder my ability to switch to S4 classes (assuming that I ever get the time to try it).
Paul Gilbert
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