Installation | Features | API | Examples | Example 1: Basic use and options | (1) Basic syntax | (2) Efficient selective joins in one line | (3) Indicator column for row origin | (4) Switch row order from left-then-right to right-then-left | (5) Display code instead of executing | Example 2: Reducing an inequality join from M:M to 1:1 with mult.x and mult.y | (1) For each event, all subsequent reactions (M:M) | (2) For each event, the next reaction (1:M) | (3) For each event, the next reaction, provided there was no intervening event (1:1) | Example 3: Chain of calls from fjoin_* to dtjoin_* to r pkg("data.table") | Performance | Notes for r pkg("tidyverse") users | Notes for r pkg("sf") users | Notes for r pkg("data.table") users | "Internals"