RE: [R] Creating a minimal package

From: Liaw, Andy <>
Date: Mon 12 Jul 2004 - 23:16:23 EST

> From: Gabor Grothendieck

> The objective should be that creating a package is as easy as this:
> f <- function()1; g <- function()2; d <- 3; e <- 4:5
> package.skeleton(list=c("f","g","d","e"), name="AnExample")
> library(AnExample)
> f()
> which means that the package needs to be inserted where library will
> find it. It should not be necessary to have an understanding of this.

To the best of my knowledge (which is not saying much, admittedly) no version of R on any OS would that work. package.skeleton() only create the directory tree and populate it with code and template files. You still need to package it up from a shell with R CMD build AnExample (or R CMD build --binary AnExample for Windows, and maybe Mac?). Then you need the install.package("AnExample", CRAN=NULL), before you can actually do library(AnExample).

BTW, for functions/objects that you would like to use over and over, but do not want to go through the hurdle of packaging, there's a fairly simple way to achieve similar effect: save all of them in a .rda file, and when you need them, just attach() the .rda file.

Let me bring up the old phrase: R is Open Source. If you want something bad enough, you can try to make it happen yourself. A good example is the scripting patch announced on R-devel by Neil McKay. Neil had provided patches to various versions of R for a while. If the packaging situation bothers you enough, feel free to contribute. I'm quite sure DM will be happy to get help...

Andy mailing list PLEASE do read the posting guide! Received on Mon Jul 12 23:34:55 2004

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