I've seen them used with data.table, but I don't use them myself. Reason being that I don't want to load a lib just to make my chains look a bit better. I usual

I've seen them used with data.table, but I don't use them myself. Reason being that I don't want to load a lib just to make my chains look a bit better. I usually have chains short enough that it's okay doing DT[..][..][..]