Follow

In the R language, given tables in matrix, data.frame or data.table classe, I did not find a safe way to extract a column whose position is given by a variable. The multi-element operator pattern [, i] will not work out of the box in data.table, which expects [,i,with=F] instead, and the single-element operator pattern [[i]] will not work with matrices, which will return their ith element. Is there another operator that will extract safely a column over multiple classes of tables ?

Sign in to participate in the conversation
Mastodon for Tech Folks

This Mastodon instance is for people interested in technology. Discussions aren't limited to technology, because tech folks shouldn't be limited to technology either!

We adhere to an adapted version of the TootCat Code of Conduct and follow the Toot Café list of blocked instances. Ash is the admin and is supported by Fuzzface as a moderator.

Hosting costs are largely covered by our generous supporters on Patreon – thanks for all the help!