Filtering rows using logical vectors
In this exercise, you'll use expressions that evaluate to a logical vector to filter rows in a data.table. All rows that evaluate to TRUE will be returned.
Note that you can refer to column names directly, without the need for the $ operator.
Este exercício faz parte do curso
Data Manipulation with data.table in R
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
# Filter all rows where start_station is "MLK Library"
trips_mlk <- batrips[___ == "___"]
trips_mlk