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"""Test the data cleaning module (qmix.exp.clean_data).
This module is used to clean experimental data. This includes basic sorting,
removing NaN values, and removing repeated values.
"""
import numpy as np
import qmix.exp.clean_data as qc
def test_clean_xy():
"""Test cleaning x/y data. By x/y data, I mean 2 arrays of equal length
where y is a function of x. Make sure that NaN values are removed, make
sure that the data is sorted by x, and make sure repeated values are
removed."""
xx1 = np.array([3., 4., np.nan, 1., 2.])
yy1 = np.array([1., 2., 3., 4., 5.])
xx2, yy2 = qc.clean_xy(xx1, yy1)
np.testing.assert_equal(xx2, np.array([1., 2., 3., 4.]))
np.testing.assert_equal(yy2, np.array([4., 5., 1., 2.]))
def test_clean_xy_matrix():
"""Test cleaning a two column matrix. Column #0 is x data, and column #1
is y data where y is a function of x. Make sure that NaN values are
removed, make sure that the data is sorted by x, and make sure repeated
values are removed."""
xx1 = np.array([3., 4., np.nan, 1., 2.])
yy1 = np.array([1., 2., 3., 4., 5.])
mat1 = qc.xy_to_matrix(xx1, yy1)
mat2 = qc.clean_matrix(mat1)
xx2, yy2 = qc.matrix_to_xy(mat2)
np.testing.assert_equal(xx2, np.array([1., 2., 3., 4.]))
np.testing.assert_equal(yy2, np.array([4., 5., 1., 2.]))
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