diff options
Diffstat (limited to 'data_analysis/maps.py')
| -rw-r--r-- | data_analysis/maps.py | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/data_analysis/maps.py b/data_analysis/maps.py index 991f279..e951f23 100644 --- a/data_analysis/maps.py +++ b/data_analysis/maps.py @@ -1,13 +1,17 @@ import cPickle -import scipy import numpy as np import matplotlib.pyplot as plt +from fuel.schemes import ConstantScheme +from fuel.streams import DataStream + import data +from data.hdf5 import TaxiDataset, TaxiStream def compute_number_coordinates(): - train_it = data.train_it() + stream = TaxiDataset('train').get_example_stream() + train_it = stream.get_epoch_iterator() # Count the number of coordinates n_coordinates = 0 @@ -24,16 +28,20 @@ def extract_coordinates(n_coordinates=None): if n_coordinates is None: n_coordinates = compute_number_coordinates() + dataset = TaxiDataset('train') + stream = DataStream(dataset, iteration_scheme=ConstantScheme(1, dataset.num_examples)) + coordinates = np.zeros((n_coordinates, 2), dtype="float32") - train_it = data.train_it() + train_it = stream.get_epoch_iterator() c = 0 for ride in train_it: - for point in ride[-1]: + for point in zip(ride[2], ride[3]): coordinates[c] = point c += 1 + print c - cPickle.dump(coordinates, open(data.DATA_PATH + "/coordinates_array.pkl", "wb")) + cPickle.dump(coordinates, open(data.path + "/coordinates_array.pkl", "wb")) def draw_map(coordinates, xrg, yrg): @@ -47,9 +55,9 @@ def draw_map(coordinates, xrg, yrg): if __name__ == "__main__": - # extract_coordinates(n_coordinates=83360928) + extract_coordinates(n_coordinates=32502730) - coordinates = cPickle.load(open(data.DATA_PATH + "/coordinates_array.pkl", "rb")) + coordinates = cPickle.load(open(data.path + "/coordinates_array.pkl", "rb")) xrg = [-8.75, -8.55] yrg = [41.05, 41.25] draw_map(coordinates, xrg, yrg) |