203 lines
7.9 KiB
Python
203 lines
7.9 KiB
Python
|
import numpy as np
|
||
|
|
import pytest
|
||
|
|
|
||
|
|
from pandas import (
|
||
|
|
Index,
|
||
|
|
IntervalIndex,
|
||
|
|
Timestamp,
|
||
|
|
interval_range,
|
||
|
|
)
|
||
|
|
import pandas._testing as tm
|
||
|
|
|
||
|
|
|
||
|
|
def monotonic_index(start, end, dtype="int64", closed="right"):
|
||
|
|
return IntervalIndex.from_breaks(np.arange(start, end, dtype=dtype), closed=closed)
|
||
|
|
|
||
|
|
|
||
|
|
def empty_index(dtype="int64", closed="right"):
|
||
|
|
return IntervalIndex(np.array([], dtype=dtype), closed=closed)
|
||
|
|
|
||
|
|
|
||
|
|
class TestIntervalIndex:
|
||
|
|
def test_union(self, closed, sort):
|
||
|
|
index = monotonic_index(0, 11, closed=closed)
|
||
|
|
other = monotonic_index(5, 13, closed=closed)
|
||
|
|
|
||
|
|
expected = monotonic_index(0, 13, closed=closed)
|
||
|
|
result = index[::-1].union(other, sort=sort)
|
||
|
|
if sort is None:
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
assert tm.equalContents(result, expected)
|
||
|
|
|
||
|
|
result = other[::-1].union(index, sort=sort)
|
||
|
|
if sort is None:
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
assert tm.equalContents(result, expected)
|
||
|
|
|
||
|
|
tm.assert_index_equal(index.union(index, sort=sort), index)
|
||
|
|
tm.assert_index_equal(index.union(index[:1], sort=sort), index)
|
||
|
|
|
||
|
|
def test_union_empty_result(self, closed, sort):
|
||
|
|
# GH 19101: empty result, same dtype
|
||
|
|
index = empty_index(dtype="int64", closed=closed)
|
||
|
|
result = index.union(index, sort=sort)
|
||
|
|
tm.assert_index_equal(result, index)
|
||
|
|
|
||
|
|
# GH 19101: empty result, different numeric dtypes -> common dtype is f8
|
||
|
|
other = empty_index(dtype="float64", closed=closed)
|
||
|
|
result = index.union(other, sort=sort)
|
||
|
|
expected = other
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
other = index.union(index, sort=sort)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
other = empty_index(dtype="uint64", closed=closed)
|
||
|
|
result = index.union(other, sort=sort)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
result = other.union(index, sort=sort)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
def test_intersection(self, closed, sort):
|
||
|
|
index = monotonic_index(0, 11, closed=closed)
|
||
|
|
other = monotonic_index(5, 13, closed=closed)
|
||
|
|
|
||
|
|
expected = monotonic_index(5, 11, closed=closed)
|
||
|
|
result = index[::-1].intersection(other, sort=sort)
|
||
|
|
if sort is None:
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
assert tm.equalContents(result, expected)
|
||
|
|
|
||
|
|
result = other[::-1].intersection(index, sort=sort)
|
||
|
|
if sort is None:
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
assert tm.equalContents(result, expected)
|
||
|
|
|
||
|
|
tm.assert_index_equal(index.intersection(index, sort=sort), index)
|
||
|
|
|
||
|
|
# GH 26225: nested intervals
|
||
|
|
index = IntervalIndex.from_tuples([(1, 2), (1, 3), (1, 4), (0, 2)])
|
||
|
|
other = IntervalIndex.from_tuples([(1, 2), (1, 3)])
|
||
|
|
expected = IntervalIndex.from_tuples([(1, 2), (1, 3)])
|
||
|
|
result = index.intersection(other)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
# GH 26225
|
||
|
|
index = IntervalIndex.from_tuples([(0, 3), (0, 2)])
|
||
|
|
other = IntervalIndex.from_tuples([(0, 2), (1, 3)])
|
||
|
|
expected = IntervalIndex.from_tuples([(0, 2)])
|
||
|
|
result = index.intersection(other)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
# GH 26225: duplicate nan element
|
||
|
|
index = IntervalIndex([np.nan, np.nan])
|
||
|
|
other = IntervalIndex([np.nan])
|
||
|
|
expected = IntervalIndex([np.nan])
|
||
|
|
result = index.intersection(other)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
def test_intersection_empty_result(self, closed, sort):
|
||
|
|
index = monotonic_index(0, 11, closed=closed)
|
||
|
|
|
||
|
|
# GH 19101: empty result, same dtype
|
||
|
|
other = monotonic_index(300, 314, closed=closed)
|
||
|
|
expected = empty_index(dtype="int64", closed=closed)
|
||
|
|
result = index.intersection(other, sort=sort)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
# GH 19101: empty result, different numeric dtypes -> common dtype is float64
|
||
|
|
other = monotonic_index(300, 314, dtype="float64", closed=closed)
|
||
|
|
result = index.intersection(other, sort=sort)
|
||
|
|
expected = other[:0]
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
other = monotonic_index(300, 314, dtype="uint64", closed=closed)
|
||
|
|
result = index.intersection(other, sort=sort)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
def test_intersection_duplicates(self):
|
||
|
|
# GH#38743
|
||
|
|
index = IntervalIndex.from_tuples([(1, 2), (1, 2), (2, 3), (3, 4)])
|
||
|
|
other = IntervalIndex.from_tuples([(1, 2), (2, 3)])
|
||
|
|
expected = IntervalIndex.from_tuples([(1, 2), (2, 3)])
|
||
|
|
result = index.intersection(other)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
def test_difference(self, closed, sort):
|
||
|
|
index = IntervalIndex.from_arrays([1, 0, 3, 2], [1, 2, 3, 4], closed=closed)
|
||
|
|
result = index.difference(index[:1], sort=sort)
|
||
|
|
expected = index[1:]
|
||
|
|
if sort is None:
|
||
|
|
expected = expected.sort_values()
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
# GH 19101: empty result, same dtype
|
||
|
|
result = index.difference(index, sort=sort)
|
||
|
|
expected = empty_index(dtype="int64", closed=closed)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
# GH 19101: empty result, different dtypes
|
||
|
|
other = IntervalIndex.from_arrays(
|
||
|
|
index.left.astype("float64"), index.right, closed=closed
|
||
|
|
)
|
||
|
|
result = index.difference(other, sort=sort)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
def test_symmetric_difference(self, closed, sort):
|
||
|
|
index = monotonic_index(0, 11, closed=closed)
|
||
|
|
result = index[1:].symmetric_difference(index[:-1], sort=sort)
|
||
|
|
expected = IntervalIndex([index[0], index[-1]])
|
||
|
|
if sort is None:
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
assert tm.equalContents(result, expected)
|
||
|
|
|
||
|
|
# GH 19101: empty result, same dtype
|
||
|
|
result = index.symmetric_difference(index, sort=sort)
|
||
|
|
expected = empty_index(dtype="int64", closed=closed)
|
||
|
|
if sort is None:
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
assert tm.equalContents(result, expected)
|
||
|
|
|
||
|
|
# GH 19101: empty result, different dtypes
|
||
|
|
other = IntervalIndex.from_arrays(
|
||
|
|
index.left.astype("float64"), index.right, closed=closed
|
||
|
|
)
|
||
|
|
result = index.symmetric_difference(other, sort=sort)
|
||
|
|
expected = empty_index(dtype="float64", closed=closed)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
@pytest.mark.filterwarnings("ignore:'<' not supported between:RuntimeWarning")
|
||
|
|
@pytest.mark.parametrize(
|
||
|
|
"op_name", ["union", "intersection", "difference", "symmetric_difference"]
|
||
|
|
)
|
||
|
|
def test_set_incompatible_types(self, closed, op_name, sort):
|
||
|
|
index = monotonic_index(0, 11, closed=closed)
|
||
|
|
set_op = getattr(index, op_name)
|
||
|
|
|
||
|
|
# TODO: standardize return type of non-union setops type(self vs other)
|
||
|
|
# non-IntervalIndex
|
||
|
|
if op_name == "difference":
|
||
|
|
expected = index
|
||
|
|
else:
|
||
|
|
expected = getattr(index.astype("O"), op_name)(Index([1, 2, 3]))
|
||
|
|
result = set_op(Index([1, 2, 3]), sort=sort)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
# mixed closed -> cast to object
|
||
|
|
for other_closed in {"right", "left", "both", "neither"} - {closed}:
|
||
|
|
other = monotonic_index(0, 11, closed=other_closed)
|
||
|
|
expected = getattr(index.astype(object), op_name)(other, sort=sort)
|
||
|
|
if op_name == "difference":
|
||
|
|
expected = index
|
||
|
|
result = set_op(other, sort=sort)
|
||
|
|
tm.assert_index_equal(result, expected)
|
||
|
|
|
||
|
|
# GH 19016: incompatible dtypes -> cast to object
|
||
|
|
other = interval_range(Timestamp("20180101"), periods=9, closed=closed)
|
||
|
|
expected = getattr(index.astype(object), op_name)(other, sort=sort)
|
||
|
|
if op_name == "difference":
|
||
|
|
expected = index
|
||
|
|
result = set_op(other, sort=sort)
|
||
|
|
tm.assert_index_equal(result, expected)
|