New posts in Data.Table

return ID's of unique combinations

Find groups of overlapping intervals with data.table

How to efficiently find last preceding row with nonzero value in R data.table

Column name equal to variable name

How to duplicate last row by group (ID)?

R: fast (conditional) subsetting where feasible

Pass variable name as argument inside data.table

Converting all data.frames in environment to data.tables

Translating dplyr to data.table

Fast way to group variables based on direct and indirect similarities in multiple columns