1. 学习
    2. /
  2. 课程
    3. /
  3. Data Manipulation with data.table in R
Connected

练习

Filtering with %in%

%in% allows selecting rows that exactly matches one or more values, for example: 

c("a", "b", "c", "d") %in% c("d", "a")
[1]  TRUE FALSE FALSE  TRUE

说明

100 XP

Filter all rows where trip_id is equal to 588841, 139560, or 139562.