Installing packages using methods: was Re: setGeneric(); R CMD check

[John Chambers]

John Chambers wrote:
................

> 
> The following snippet will _apparently_ install with or without --save:
> 
> ### Dummy Package
> require("methods")
> 
> foo <- function(x)x
> 
> setGeneric("foo")
> 
> setMethod("foo", "character", function(x) paste("++", x))
> ###
> 

By the way, an additional annoyance is that even with --SAVE, this
doesn't quite work always, because the `require("methods")' is only
active at INSTALL time, not when the image is loaded.  It would be nice
to make this carry over automatically as well, but how?

For now, the programmer needs to include the require("methods") in a
First.lib function in the package.



John
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> --
> John M. Chambers                  jmc@bell-labs.com
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-- 
John M. Chambers                  jmc@bell-labs.com
Bell Labs, Lucent Technologies    office: (908)582-2681
700 Mountain Avenue, Room 2C-282  fax:    (908)582-3340
Murray Hill, NJ  07974            web: http://www.cs.bell-labs.com/~jmc
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