[Rd] idea for "virtual matrix/array" class

[Jeff Gentry]

> Does anyone have any opinions as to the merits of this idea?  Would there 
> be any interest in seeing such a class in R?

Have you looked at the 'externalVector' package in Bioconductor?  I'm
admittedly not super familiar with it, although my understanding of how it
works and what it does seems pretty similar to what you are describing.

-J