Serguei,
The R 3.5.0 release includes the fundamental ALTREP framework but does not
include many 'hooks' within R's source code to make use of methods on the
ALTREP custom vector classes. I have implemented a fair number, including
for mean() to use the custom Sum method when available, in the ALT
Hi,
By looking at a doc about ALTREP
https://svn.r-project.org/R/branches/ALTREP/ALTREP.html (by the way
congratulations for that and for R-3.5.0 in general), I was a little bit
surprised by the following example:
> x <- 1:1e10
> system.time(print(mean(x)))
[1] 5e+09
user system elapsed
