A function to get a nested OD data subset by school
Usage
prepare_od(od_data, destination.col, trips.col, distance.threshold)
Arguments
- od_data
original od dataset
- destination.col
string with name of the column with destination id
- trips.col
string with name of the column with number of trips for each OD pair
- distance.threshold
distance threshold in metres to create a subset of the routes