Have a question about the following NOTEs appearing on CRAN checks:
> .onLoad calls:
> require(methods)
>
> Package startup functions should not change the search path.
> See section ŒGood practice¹ in ?.onAttach.
For years, I have had the following in my S4-requiring packages.
##---------------------------------------------------------------------
.onLoad <- function(libname, pkgname) {
## In case namespace is loaded (via import) by package that
## doesn't depend on S4 methods and used in a session with
## non-default set of packages
require(methods)
}
It was all based on an explanation Prof. Ripley gave to someone
about some package loading corner case (reference lost to history
though circa R-2.7 or before). Is it no longer an issue?
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