Le 24/09/2019 à 07:48, Gabriel Becker a écrit :
Also, a small nitpick, R's internal mean function doesn't hit Dataptr, it
hits either INTEGER_ELT (which really should probably be a
ITERATE_BY_REGION) or ITERATE_BY_REGION.
Even if it is not the main point of this thread, I was wondering if
mean() could take an advantage of sum() (which handles ALTREP in
efficient way) to be defined as mean(x)=sum(x)/length(x)? Currently,
sum(1:1e14) is almost instantaneous while mean(1:1e14) is very long.
Best Serguei.
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
