Re: [Rd] Reference classes and ".requireCachedGenerics"

2011-02-15 Thread John Chambers
PS: this is another glitch that arises when you don't use NAMESPACE files. If the .requireCachedGenerics is in a NAMESPACE and not exported, the conflict does not arise. On 2/15/11 12:52 PM, John Chambers wrote: No worries, and we will get rid of the warning message. Certain of the S4 classe

Re: [Rd] Reference classes and ".requireCachedGenerics"

2011-02-15 Thread John Chambers
No worries, and we will get rid of the warning message. Certain of the S4 classes require methods for particular primitive functions. If a subclass of one of those classes is loaded from a package, then we need to turn on method dispatch for the corresponding primitive(s). For efficiency, th

[Rd] Reference classes and ".requireCachedGenerics"

2011-02-15 Thread Jon Clayden
Dear all, If I load a package which creates reference classes whilst another such package is also loaded, I get a warning about masking of the ".requireCachedGenerics" variable. (FWIW, both packages are lazy-loaded.) Googling this variable name turned up only one previous discussion, which didn't