[R] Definition of "wrapper"?

[Bryan Hanson]

I think I more or less understand what a ³wrapper² is, but I¹d like to hear
how more experienced R users define it, and especially I'd like to know if
there is a formal definition.  In my reading, it seems like there are a
fairly wide range of meanings, but they are all conceptually similar.

I've looked in a couple of the classic R texts, the extensions and
developers' manuals, and R help archives, and didn't find a definition.  Of
course, I may have missed it.

Thanks in advance.  Bryan

**************
Bryan Hanson
Professor of Chemistry & Biochemistry
DePauw University
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