[Rd] RE: [R] ^ operation much slower in R 1.7.1 than in R 1.7.0 ???

Thomas Lumley tlumley at u.washington.edu
Tue Aug 5 08:21:10 MEST 2003

On Tue, 5 Aug 2003, Philippe Grosjean wrote:
> OK. But I was wondering if people at R-core team, especially those who
> worked on Windows specific aspects, would have in mind some changes they did
> between 1.7.0 and 1.7.1 than can cause this. Since these changes are mainly
> corrections of bugs, the list is hopefully not so long... and it could help
> a lot to have these hints. Thanks very much.

I checked that the slowdown really was happening in "^", which is
Primitive and so fairly direct.  I couldn't find anything remotely
plausible as a cause, though.

My first guess was something involving the methods package and my second
was a compiler change, so I'm 0-2 so far.


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