An internal function to create test data
This function is used to generate random dates
for setup_random_test_data
get_random_dates(start_date, num_of_dates = 1000, min = 0, max = 100,
seed = NULL)The start crossing date.
The number of journeys for each person.
The minimum duration between journeys.
The maximum duration between journeys.
A random seed to generate random dates.
A list of boarder crossing dates