Re: [Rd] Proposal: model.data

2012-05-04 Thread Martin Maechler
> "PJ" == Paul Johnson > on Thu, 3 May 2012 12:09:08 -0500 writes: PJ> Greetings: On Thu, May 3, 2012 at 11:36 AM, Brian PJ> G. Peterson wrote: >> On Thu, 2012-05-03 at 10:51 -0500, Paul Johnson wrote: >>> If somebody in R Core would like this and think about >>>

Re: [Rd] Proposal: model.data

2012-05-04 Thread Paul Johnson
On Thu, May 3, 2012 at 12:19 PM, Brian G. Peterson wrote: > On Thu, 2012-05-03 at 12:09 -0500, Paul Johnson wrote: >> Greetings: >> >> On Thu, May 3, 2012 at 11:36 AM, Brian G. Peterson >> wrote: >> > On Thu, 2012-05-03 at 10:51 -0500, Paul Johnson wrote: >> >> If somebody in R Core would like t

Re: [Rd] Proposal: model.data

2012-05-03 Thread Brian G. Peterson
On Thu, 2012-05-03 at 12:09 -0500, Paul Johnson wrote: > Greetings: > > On Thu, May 3, 2012 at 11:36 AM, Brian G. Peterson > wrote: > > On Thu, 2012-05-03 at 10:51 -0500, Paul Johnson wrote: > >> If somebody in R Core would like this and think about putting it, or > >> something like it, into th

Re: [Rd] Proposal: model.data

2012-05-03 Thread Paul Johnson
Greetings: On Thu, May 3, 2012 at 11:36 AM, Brian G. Peterson wrote: > On Thu, 2012-05-03 at 10:51 -0500, Paul Johnson wrote: >> If somebody in R Core would like this and think about putting it, or >> something like it, into the base, then many chores involving predicted >> values would become mu

Re: [Rd] Proposal: model.data

2012-05-03 Thread Brian G. Peterson
On Thu, 2012-05-03 at 10:51 -0500, Paul Johnson wrote: > If somebody in R Core would like this and think about putting it, or > something like it, into the base, then many chores involving predicted > values would become much easier. > Why does this need to be in base? Implement it in a package.

[Rd] Proposal: model.data

2012-05-03 Thread Paul Johnson
Greetings: I'm still working on functions to make it easier for students to interpret regression predictions. I am working out a scheme to more easily create "newdata" objects (for use in predict functions). This has been done before in packages like Zelig, Effects, rms, and others. Nothing is "e