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import numpy as np |
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import pandas as pd |
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import unittest |
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from ..clean import ( |
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clean_column_names, |
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data_cleaning, |
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drop_missing, |
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convert_datatypes, |
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pool_duplicate_subsets, |
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) |
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class Test_clean_column_names(unittest.TestCase): |
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@classmethod |
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def setUpClass(cls) -> None: |
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cls.df1 = pd.DataFrame( |
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{ |
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"Asd 5$ & (3€)": [1, 2, 3], |
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"3+3": [2, 3, 4], |
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"AsdFer #9": [3, 4, 5], |
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'"asd"': [5, 6, 7], |
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"dupli": [5, 6, 8], |
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"also": [9, 2, 7], |
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"-Ä-__some/(... \n ..))++$%/name/ .........": [2, 3, 7], |
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} |
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) |
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cls.df2 = pd.DataFrame( |
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{ |
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"dupli": [3, 2, 1], |
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"also": [4, 5, 7], |
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"verylongColumnNamesareHardtoRead": [9, 2, 7], |
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} |
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) |
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cls.df_clean_column_names = pd.concat([cls.df1, cls.df2], axis=1) |
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def test_clean_column_names(self): |
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expected_results = [ |
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"asd_5_dollar_and_3_euro", |
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"3_plus_3", |
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"asd_fer_number_9", |
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"asd", |
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"dupli", |
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"also", |
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"ae_some_plus_plus_dollar_percent_name", |
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"dupli_7", |
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"also_8", |
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"verylong_column_namesare_hardto_read", |
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] |
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for i, _ in enumerate(expected_results): |
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self.assertEqual( |
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clean_column_names(self.df_clean_column_names).columns[i], |
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expected_results[i], |
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) |
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for i, _ in enumerate(expected_results): |
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self.assertEqual( |
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clean_column_names(self.df_clean_column_names, hints=False).columns[i], |
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expected_results[i], |
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) |
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class Test_drop_missing(unittest.TestCase): |
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@classmethod |
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def setUpClass(cls): |
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cls.df_data_drop = pd.DataFrame( |
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[ |
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[np.nan, np.nan, np.nan, np.nan, np.nan], |
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[pd.NA, pd.NA, pd.NA, pd.NA, pd.NA], |
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[pd.NA, "b", "c", "d", "e"], |
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[pd.NA, 6, 7, 8, 9], |
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[pd.NA, 2, 3, 4, pd.NA], |
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[pd.NA, 6, 7, pd.NA, pd.NA], |
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], |
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columns=["c1", "c2", "c3", "c4", "c5"], |
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) |
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def test_drop_missing(self): |
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self.assertEqual(drop_missing(self.df_data_drop).shape, (4, 4)) |
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# Drop further columns based on threshold |
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self.assertEqual( |
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drop_missing(self.df_data_drop, drop_threshold_cols=0.5).shape, (4, 3) |
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) |
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self.assertEqual( |
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drop_missing( |
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self.df_data_drop, drop_threshold_cols=0.5, col_exclude=["c1"] |
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).shape, |
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(4, 4), |
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) |
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self.assertEqual( |
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drop_missing(self.df_data_drop, drop_threshold_cols=0.49).shape, (4, 2) |
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) |
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self.assertEqual( |
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drop_missing(self.df_data_drop, drop_threshold_cols=0).shape, (0, 0) |
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) |
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# Drop further rows based on threshold |
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self.assertEqual( |
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drop_missing(self.df_data_drop, drop_threshold_rows=0.67).shape, (4, 4) |
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) |
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self.assertEqual( |
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drop_missing(self.df_data_drop, drop_threshold_rows=0.5).shape, (4, 4) |
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) |
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self.assertEqual( |
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drop_missing(self.df_data_drop, drop_threshold_rows=0.49).shape, (3, 4) |
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) |
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self.assertEqual( |
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drop_missing(self.df_data_drop, drop_threshold_rows=0.25).shape, (3, 4) |
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) |
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self.assertEqual( |
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drop_missing(self.df_data_drop, drop_threshold_rows=0.24).shape, (2, 4) |
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) |
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self.assertEqual( |
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drop_missing( |
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self.df_data_drop, drop_threshold_rows=0.24, col_exclude=["c1"] |
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).shape, |
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(2, 5), |
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) |
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self.assertEqual( |
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drop_missing( |
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self.df_data_drop, drop_threshold_rows=0.24, col_exclude=["c2"] |
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).shape, |
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(2, 4), |
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) |
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self.assertEqual( |
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drop_missing( |
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self.df_data_drop, drop_threshold_rows=0.51, col_exclude=["c1"] |
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).shape, |
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(3, 5), |
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) |
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class Test_data_cleaning(unittest.TestCase): |
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@classmethod |
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def setUpClass(cls): |
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cls.df_data_cleaning = pd.DataFrame( |
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[ |
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[np.nan, np.nan, np.nan, np.nan, np.nan], |
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[pd.NA, pd.NA, pd.NA, pd.NA, pd.NA], |
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[pd.NA, "b", 6, "d", "e"], |
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[pd.NA, "b", 7, 8, 9], |
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[pd.NA, "c", 3, 4, pd.NA], |
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[pd.NA, "d", 7, pd.NA, pd.NA], |
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], |
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columns=["c1", "c2", "c3", "c4", "c5"], |
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) |
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def test_data_cleaning(self): |
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self.assertEqual(data_cleaning(self.df_data_cleaning).shape, (4, 4)) |
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# c1 will be dropped despite in col_exclude because it is single valued |
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self.assertEqual( |
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data_cleaning(self.df_data_cleaning, col_exclude=["c1"]).shape, (4, 4) |
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) |
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expected_results = ["string", "int8", "O", "O"] |
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for i, _ in enumerate(expected_results): |
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self.assertEqual( |
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data_cleaning(self.df_data_cleaning, convert_dtypes=True).dtypes[i], |
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expected_results[i], |
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) |
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class Test_convert_dtypes(unittest.TestCase): |
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@classmethod |
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def setUpClass(cls): |
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cls.df_data_convert = pd.DataFrame( |
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[ |
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[1, 7.0, "y", "x", pd.NA, "v"], |
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[3, 8.0, "d", "e", pd.NA, "v"], |
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[5, 7.0, "o", "z", pd.NA, "v"], |
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[1, 7.0, "u", "f", pd.NA, "p"], |
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[1, 7.0, "u", "f", pd.NA, "p"], |
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[2, 7.0, "g", "a", pd.NA, "p"], |
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] |
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) |
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def test_convert_dtypes(self): |
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expected_results = [ |
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"int8", |
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"float32", |
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"string", |
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"string", |
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"category", |
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"category", |
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] |
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for i, _ in enumerate(expected_results): |
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self.assertEqual( |
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convert_datatypes(self.df_data_convert, cat_threshold=0.4).dtypes[i], |
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expected_results[i], |
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) |
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expected_results = ["int8", "float32", "string", "string", "object", "string"] |
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for i, _ in enumerate(expected_results): |
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self.assertEqual( |
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convert_datatypes(self.df_data_convert).dtypes[i], expected_results[i] |
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) |
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expected_results = ["int8", "float32", "string", "string", "object", "category"] |
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for i, _ in enumerate(expected_results): |
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self.assertEqual( |
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convert_datatypes( |
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self.df_data_convert, cat_threshold=0.5, cat_exclude=[4] |
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).dtypes[i], |
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expected_results[i], |
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) |
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expected_results = [ |
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"int8", |
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"float32", |
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"string", |
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"category", |
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"object", |
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"category", |
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] |
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for i, _ in enumerate(expected_results): |
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self.assertEqual( |
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convert_datatypes( |
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self.df_data_convert, cat_threshold=0.95, cat_exclude=[2, 4] |
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).dtypes[i], |
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expected_results[i], |
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) |
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expected_results = ["int8", "float32", "string", "string", "object", "string"] |
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for i, _ in enumerate(expected_results): |
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self.assertEqual( |
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convert_datatypes( |
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self.df_data_convert, |
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category=False, |
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cat_threshold=0.95, |
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cat_exclude=[2, 4], |
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).dtypes[i], |
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expected_results[i], |
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) |
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234
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235
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class Test_pool_duplicate_subsets(unittest.TestCase): |
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@classmethod |
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def setUpClass(cls): |
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cls.df_data_subsets = pd.DataFrame( |
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[ |
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[1, 7, "d", "x", pd.NA, "v"], |
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[1, 8, "d", "e", pd.NA, "v"], |
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[2, 7, "g", "z", pd.NA, "v"], |
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[1, 7, "u", "f", pd.NA, "p"], |
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[1, 7, "u", "z", pd.NA, "p"], |
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[2, 7, "g", "z", pd.NA, "p"], |
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] |
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) |
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def test_pool_duplicate_subsets(self): |
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self.assertEqual(pool_duplicate_subsets(self.df_data_subsets).shape, (6, 3)) |
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self.assertEqual( |
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pool_duplicate_subsets(self.df_data_subsets, col_dupl_thresh=1).shape, |
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(6, 6), |
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) |
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self.assertEqual( |
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pool_duplicate_subsets(self.df_data_subsets, subset_thresh=0).shape, (6, 2) |
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) |
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