Le 19/04/2020 à 20:46, Gabor Grothendieck a écrit :
You can get pretty close to that already using fn$ in the gsubfn package:
library(gsubfn) fn$sapply(split(mtcars, mtcars$cyl), x ~
summary(lm(mpg ~ wt, x))$r.squared)
4 6 8 0.5086326 0.4645102 0.4229655
Right, I thought about similar syntax b
I wouldn't drive my choices using unlikely edge cases
but rather focus on the vast majority of practical cases.
The popularity of tidyverse shows that this philosophy
works well from a user's perspective.
For the vast majority of practical cases it works well, and for the
others you can either us
> Arni Magnusson
> on Mon, 13 Apr 2020 22:20:19 + writes:
> If read.table() is defaulting to "character" instead of "factor" data
type, shouldn't type.convert() also default to "character" in R 4.0.0?
> This would seem like a good time to change the default to
type.conve
Dear Martin,
Thank you for the well-reasoned response. I realized I was rather late to make
this suggestion for 4.0.0, changing a somewhat low-level function that can
indeed affect packages.
I was just reviewing some R user scripts that were using type.convert(), mainly
on data frames. In all
> Arni Magnusson
> on Mon, 20 Apr 2020 16:50:16 + writes:
> Dear Martin,
> Thank you for the well-reasoned response. I realized I was rather late to
make this suggestion for 4.0.0, changing a somewhat low-level function that can
indeed affect packages.
> I was just
