[R] R loop

[Peter Dalgaard]

Uwe Ligges <ligges at statistik.uni-dortmund.de> writes:

> Petr Pikal wrote:
> 
> > Hi
> > 
> > you are correct as usually. It is about 10 versions 1.2.0 - 2.2.1 and 
> > as there are 2 versions per year it is about 4-5 years.

[That calculus only goes back to 2001, though, previous to that the
release rate was higher (and the numbering stranger). And it is of
course a coincidence that 2.0.0 followed 1.9.x.]

> > But nevertheless it seems to me as if I used R forever (and hopefully 
> > it will continue)
> > 
> > Anyway subsetting data frames **was** similar in the old versions as 
> > it is now, wasn't it?
> 
> Yes, AFAIR, and just tested in 1.2.2.

AFAIR, the current data frame code was adopted in late 1997 from the
code that John Chambers had donated to Statlib...

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