[R] S4 generic and method arguments -- "expanded signature"

Hello R-List, ** This e-mail was initially bounced. Please forgive any duplicates.** I'm creating a new generic function and 3 associated methods, in which each of the methods only needs a subset of the arguments specified in the generic. So, I create the generic like so (with the signature d

[R] Passing filenames to the getopt package

Hi all, I've finally started to use Rscript for my statistical scripting needs, and find I'm being blocked by what must be a very simple problem. Specifically, the command lines for my scripts usually contain: (1) the script name, (2) one or more options and their arguments, and finally, (3)