Writing date and time columns
fwrite() provides several fast and consistent ways of writing date and datetime columns to files using the dateTimeAs argument. In order for you to clearly understand how this works, you will be working batrips_dates, which consists of two columns and five rows:
start_date end_date
1: 2014-01-01 00:14:00 2014-01-01 00:21:00
2: 2014-01-01 00:14:00 2014-01-01 00:21:00
3: 2014-01-01 00:17:00 2014-01-01 00:42:00
4: 2014-01-01 00:23:00 2014-01-01 00:50:00
5: 2014-01-01 00:23:00 2014-01-01 00:50:00
Deze oefening maakt deel uit van de cursus
Data Manipulation with data.table in R
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
# Write batrips_dates to file using "ISO" format
___
# Import the file back
iso <- ___
iso