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.
Questo esercizio fa parte del corso
Data Manipulation with data.table in R
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Filter all rows where start_station is "MLK Library"
trips_mlk <- batrips[___ == "___"]
trips_mlk