transbigdata.traj_clean_redundant

transbigdata.traj_clean_redundant(data, col=['VehicleNum', 'Time', 'Lng', 'Lat'])

Delete the data with the same information as the data before and after to reduce the amount of data. For example, if several consecutive data of an individual have the same information except for the time, only the first and last two data can be kept

Parameters:

• data (DataFrame) – Data

• col (List) – The column name, in the order of [‘Vehicleid, Time’]. It will sort by time, and then determine the information of other columns besides the time

Returns:

data1 – Cleaned data

Return type:

DataFrame