R-alpha: frame tools

[Peter Dalgaard BSA]

Kurt Hornik <hornik@ci.tuwien.ac.at> writes:

> 
> Btw, what happened to Peter's frame tools?   Is there a new version?
> Are there plans to include them in the distribution?

In the cooler for the time being. I did a little poking around some
weeks ago, planning to change the syntax slightly so that there would
be two functions, accessed as generic methods:

subset.data.frame(fr,...,where)
transform.data.frame(fr,...)

e.g.,

subset(data,visit1:visit5,where=(treat=="placebo"))
transform(data,log.creatin=log(creatin))

I.e. subset now combines the old select.frame and subset.frame
mechanisms.

I also spent a litle while pondering whether the method for
substituting names in an object of mode "call" could be generalized
somehow, but decided that it was probably too difficult to get it
right.

Then the close-xterm bug zapped the .RData in the directory where I
had been experimenting... Actually, I hadn't done all that much,
mainly terminology cleanup, and what was lost should be easily
recreated.

What's really keeping me is that I've decided to try using R for our
course in basic statistics for medical researchers, so now I need to
focus on making sure things work that I absolutely *need*, and write
various tutorials and missing functions (anyone have logrank.test and
kaplan.meier.plot? Working with the Windows version, that is!).

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907
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