[Rd] loadings generic?
Martin Maechler
maechler at stat.math.ethz.ch
Mon Mar 21 18:49:00 CET 2005
>>>>> "PaulG" == Paul Gilbert <pgilbert at bank-banque-canada.ca>
>>>>> on Sun, 20 Mar 2005 10:37:29 -0500 writes:
PaulG> Can loadings in stats be made generic?
It becomes a (S4) generic automagically when you define an S4 method
for it. ;-)
{yes, I know this isn't the answer you wanted to hear;
but really, maybe it's worth considering to use S4 classes and
methods ?}
For S3, it's a bit uglier, but I think you could still do -- in your
package --
if(!exists("loadings.default", mode="function")) {
loadings.default <- loadings
loadings <- function(x, ...) UseMethod("loadings")
}
loadings.<myclass> <- function(x, ...) {
.........
}
and S3-export these.
Martin
More information about the R-devel
mailing list