eland/tests/dataframe/test_hist_pytest.py
2020-11-16 11:30:41 -06:00

96 lines
3.2 KiB
Python

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# the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
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#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# File called _pytest for PyCharm compatability
import numpy as np
import pandas as pd
from pandas.testing import assert_frame_equal
from tests.common import TestData
class TestDataFrameHist(TestData):
def test_flights_hist(self):
pd_flights = self.pd_flights()
ed_flights = self.ed_flights()
num_bins = 10
# pandas data
pd_distancekilometers = np.histogram(pd_flights["DistanceKilometers"], num_bins)
pd_flightdelaymin = np.histogram(pd_flights["FlightDelayMin"], num_bins)
pd_bins = pd.DataFrame(
{
"DistanceKilometers": pd_distancekilometers[1],
"FlightDelayMin": pd_flightdelaymin[1],
}
)
pd_weights = pd.DataFrame(
{
"DistanceKilometers": pd_distancekilometers[0],
"FlightDelayMin": pd_flightdelaymin[0],
}
)
_ = ed_flights[["DistanceKilometers", "FlightDelayMin"]]
ed_bins, ed_weights = ed_flights[
["DistanceKilometers", "FlightDelayMin"]
]._hist(num_bins=num_bins)
# Numbers are slightly different
assert_frame_equal(pd_bins, ed_bins, check_exact=False)
assert_frame_equal(pd_weights, ed_weights, check_exact=False)
def test_flights_filtered_hist(self):
pd_flights = self.pd_flights()
ed_flights = self.ed_flights()
pd_flights = pd_flights[pd_flights.FlightDelayMin > 0]
ed_flights = ed_flights[ed_flights.FlightDelayMin > 0]
num_bins = 10
# pandas data
pd_distancekilometers = np.histogram(pd_flights["DistanceKilometers"], num_bins)
pd_flightdelaymin = np.histogram(pd_flights["FlightDelayMin"], num_bins)
pd_bins = pd.DataFrame(
{
"DistanceKilometers": pd_distancekilometers[1],
"FlightDelayMin": pd_flightdelaymin[1],
}
)
pd_weights = pd.DataFrame(
{
"DistanceKilometers": pd_distancekilometers[0],
"FlightDelayMin": pd_flightdelaymin[0],
}
)
_ = ed_flights[["DistanceKilometers", "FlightDelayMin"]]
ed_bins, ed_weights = ed_flights[
["DistanceKilometers", "FlightDelayMin"]
]._hist(num_bins=num_bins)
# Numbers are slightly different
assert_frame_equal(pd_bins, ed_bins, check_exact=False)
assert_frame_equal(pd_weights, ed_weights, check_exact=False)