It's been six months since I wrote about some statistical friction points in {tidymodels} (bootstrap inference and LOOCV). I opened GitHub issues to track them back then, but none have received engagement or comments from the tidymodels team yet. Would still love to see a dialogue on these. #Rstats
![Diff of a change the 'Getting Started in R - Tinyverse Edition' manuscript with a nice data.table improvement: inside a pair of ( ) we can place each chained operation on its own line improving readability.
I.e. we have
cw21 <- ( # use '(' to keep ops on separate lines
cw[Time %in% c(0,21)] # i: select rows
[, weight := Weight] # j: mutate
[, Group := factor(Group)]
[, .(Chick,Group,Time,weight)] # j: arrange
[order(Chick,Time)] # i: order
[1:5] # i: subset
)](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:hdbguwort62mhodqy7vjspud/bafkreibbmwqmfe2wuvlsvy2f7v5eegui6lwocren4lvy2hc4kmn7kuvnjm)
![airquality |>
transform(TempC = (Temp-32)/1.8,
Month = month.name[Month]) |>
aggregate(TempC ~ Month, mean)](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:nwakte3xnyrtvrebiq6mad3z/bafkreig5vph4x2r6pdnkcqim34eh3r6nkwevmvg23syjtk6um2bjrm5udu)
