Description Usage Arguments Value Examples
Extract date-time limits from trip database
1 | bike_datelimits(bikedb, city)
|
bikedb |
A string containing the path to the SQLite3 database.
If no directory specified, it is presumed to be in |
city |
If given, date limits are calculated only for trips in that city. |
A vector of 2 elements giving the date-time of the first and last trips
1 2 3 4 5 6 7 8 9 10 11 12 13 | data_dir <- tempdir ()
bike_write_test_data (data_dir = data_dir)
# dl_bikedata (city = 'la', data_dir = '.') # or download some real data!
bikedb <- file.path (data_dir, 'testdb')
store_bikedata (data_dir = data_dir, bikedb = bikedb)
bike_datelimits ('testdb') # overall limits for all cities
bike_datelimits ('testdb', city = 'NYC')
bike_datelimits ('testdb', city = 'los angeles')
bike_rm_test_data (data_dir = data_dir)
bike_rm_db (bikedb)
# don't forget to remove real data!
# file.remove (list.files ('.', pattern = '.zip'))
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