from warnings import catch_warnings
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import numpy as np
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import pytest
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import pandas as pd
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from pandas import (
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DataFrame,
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Series,
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)
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import pandas._testing as tm
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from pandas.tests.io.pytables.common import ensure_clean_store
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from pandas.io.pytables import read_hdf
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def test_complex_fixed(tmp_path, setup_path):
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df = DataFrame(
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np.random.rand(4, 5).astype(np.complex64),
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index=list("abcd"),
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columns=list("ABCDE"),
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)
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path = tmp_path / setup_path
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df.to_hdf(path, "df")
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reread = read_hdf(path, "df")
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tm.assert_frame_equal(df, reread)
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df = DataFrame(
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np.random.rand(4, 5).astype(np.complex128),
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index=list("abcd"),
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columns=list("ABCDE"),
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)
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path = tmp_path / setup_path
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df.to_hdf(path, "df")
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reread = read_hdf(path, "df")
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tm.assert_frame_equal(df, reread)
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def test_complex_table(tmp_path, setup_path):
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df = DataFrame(
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np.random.rand(4, 5).astype(np.complex64),
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index=list("abcd"),
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columns=list("ABCDE"),
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)
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path = tmp_path / setup_path
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df.to_hdf(path, "df", format="table")
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reread = read_hdf(path, "df")
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tm.assert_frame_equal(df, reread)
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df = DataFrame(
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np.random.rand(4, 5).astype(np.complex128),
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index=list("abcd"),
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columns=list("ABCDE"),
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)
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path = tmp_path / setup_path
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df.to_hdf(path, "df", format="table", mode="w")
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reread = read_hdf(path, "df")
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tm.assert_frame_equal(df, reread)
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def test_complex_mixed_fixed(tmp_path, setup_path):
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complex64 = np.array(
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[1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j], dtype=np.complex64
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)
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complex128 = np.array(
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[1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j], dtype=np.complex128
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)
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df = DataFrame(
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{
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"A": [1, 2, 3, 4],
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"B": ["a", "b", "c", "d"],
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"C": complex64,
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"D": complex128,
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"E": [1.0, 2.0, 3.0, 4.0],
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},
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index=list("abcd"),
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)
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path = tmp_path / setup_path
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df.to_hdf(path, "df")
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reread = read_hdf(path, "df")
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tm.assert_frame_equal(df, reread)
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def test_complex_mixed_table(tmp_path, setup_path):
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complex64 = np.array(
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[1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j], dtype=np.complex64
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)
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complex128 = np.array(
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[1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j], dtype=np.complex128
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)
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df = DataFrame(
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{
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"A": [1, 2, 3, 4],
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"B": ["a", "b", "c", "d"],
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"C": complex64,
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"D": complex128,
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"E": [1.0, 2.0, 3.0, 4.0],
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},
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index=list("abcd"),
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)
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with ensure_clean_store(setup_path) as store:
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store.append("df", df, data_columns=["A", "B"])
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result = store.select("df", where="A>2")
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tm.assert_frame_equal(df.loc[df.A > 2], result)
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path = tmp_path / setup_path
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df.to_hdf(path, "df", format="table")
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reread = read_hdf(path, "df")
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tm.assert_frame_equal(df, reread)
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def test_complex_across_dimensions_fixed(tmp_path, setup_path):
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with catch_warnings(record=True):
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complex128 = np.array([1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j])
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s = Series(complex128, index=list("abcd"))
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df = DataFrame({"A": s, "B": s})
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objs = [s, df]
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comps = [tm.assert_series_equal, tm.assert_frame_equal]
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for obj, comp in zip(objs, comps):
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path = tmp_path / setup_path
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obj.to_hdf(path, "obj", format="fixed")
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reread = read_hdf(path, "obj")
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comp(obj, reread)
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def test_complex_across_dimensions(tmp_path, setup_path):
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complex128 = np.array([1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j])
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s = Series(complex128, index=list("abcd"))
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df = DataFrame({"A": s, "B": s})
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with catch_warnings(record=True):
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objs = [df]
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comps = [tm.assert_frame_equal]
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for obj, comp in zip(objs, comps):
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path = tmp_path / setup_path
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obj.to_hdf(path, "obj", format="table")
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reread = read_hdf(path, "obj")
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comp(obj, reread)
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def test_complex_indexing_error(setup_path):
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complex128 = np.array(
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[1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j], dtype=np.complex128
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)
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df = DataFrame(
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{"A": [1, 2, 3, 4], "B": ["a", "b", "c", "d"], "C": complex128},
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index=list("abcd"),
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)
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msg = (
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"Columns containing complex values can be stored "
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"but cannot be indexed when using table format. "
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"Either use fixed format, set index=False, "
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"or do not include the columns containing complex "
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"values to data_columns when initializing the table."
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)
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with ensure_clean_store(setup_path) as store:
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with pytest.raises(TypeError, match=msg):
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store.append("df", df, data_columns=["C"])
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def test_complex_series_error(tmp_path, setup_path):
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complex128 = np.array([1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j, 1.0 + 1.0j])
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s = Series(complex128, index=list("abcd"))
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msg = (
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"Columns containing complex values can be stored "
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"but cannot be indexed when using table format. "
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"Either use fixed format, set index=False, "
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"or do not include the columns containing complex "
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"values to data_columns when initializing the table."
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)
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path = tmp_path / setup_path
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with pytest.raises(TypeError, match=msg):
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s.to_hdf(path, "obj", format="t")
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path = tmp_path / setup_path
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s.to_hdf(path, "obj", format="t", index=False)
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reread = read_hdf(path, "obj")
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tm.assert_series_equal(s, reread)
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def test_complex_append(setup_path):
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df = DataFrame(
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{"a": np.random.randn(100).astype(np.complex128), "b": np.random.randn(100)}
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)
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with ensure_clean_store(setup_path) as store:
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store.append("df", df, data_columns=["b"])
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store.append("df", df)
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result = store.select("df")
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tm.assert_frame_equal(pd.concat([df, df], axis=0), result)
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