transbigdata.grid_params_optimize

transbigdata.grid_params_optimize(data, initialparams, col=['uid', 'lon', 'lat'], optmethod='centerdist', printlog=False, sample=0, pop=15, max_iter=50, w=0.1, c1=0.5, c2=0.5)

Optimize the grid params

Parameters:

• data (DataFrame) – Trajectory data

• initialparams (List) – Initial griding params

• col (List) – Column names [uid,lon,lat]

• optmethod (str) – The method to optimize: centerdist, gini, gridscount

• printlog (bool) – Whether to print detail result

• sample (int) – Sample the data as input, if 0 it will not perform sampling

• pop – Params in PSO from scikit-opt

• max_iter – Params in PSO from scikit-opt

• w – Params in PSO from scikit-opt

• c1 – Params in PSO from scikit-opt

• c2 – Params in PSO from scikit-opt

Returns:

params_optimized – Optimized params

Return type:

List