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
This exercise is part of the course
Data Manipulation with data.table in R
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Write batrips_dates to file using "ISO" format
___
# Import the file back
iso <- ___
iso