On Tue, 17 Mar 2009, John Chambers wrote:
It's important though to use the default, one argument, call to setGeneric().
Otherwise the two functions are not consistent and can't exist in the same
namespace.
Thanks. Does this include restricting which arguments are used for dispatch? I
have
setGeneric("bigglm", signature=c("formula","data"))
to dispatch just on the first two arguments.
I will try to run everything on my desktop back in Seattle to see if there are
still problems under r-devel -- my laptop is staying with its current version
of R until my book goes to the publisher.
PS: if this is the biglm() in the biglm package, the current CRAN version is
not a generic of any flavor. Presumably this is a new version?
You're missing a 'g'. It's bigglm(), which is S3-generic already. The current
version uses S3 inheritance on SQLiteConnection (which works, but doesn't
extend to other DBIConnection objects, as you pointed out previously).
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
tlum...@u.washington.edu University of Washington, Seattle
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