S4R: R compatibility with S version 4/Splus5+ support functions
Description
These objects ease the task of porting functions into R
from S Version 4 and S-Plus 5.0 and later. See the documentation
there. May be obsolete in the future.Usage
usingR(major, minor)
example
rc <- try(fetch(res, n = -1))
if(inherit(rc, ErrorClass))
stop("could not fetch the data")