RFC: large database interface

[Thomas Lumley]

I have been playing with a large database interface for R, and have
written one complete but useless demonstration and one incomplete but
potentially useful example (with memory mapping of a fixed-format ASCII
file). The idea is to make the file appear like a matrix or data frame but
not have to read it into the R heap.

A description and code can be found at
http://www.biostat.washington.edu/~thomas/Rdb.html
                                          Rdb.nw  (noweb literate program)
                                          Rdb.c
                                          Rdb.R

Comments?

Thomas Lumley
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