257 lines
9.3 KiB
Python
257 lines
9.3 KiB
Python
import numpy as np
|
|
import pytest
|
|
|
|
import pandas as pd
|
|
from pandas import Int64Index, TimedeltaIndex, timedelta_range
|
|
import pandas._testing as tm
|
|
|
|
from pandas.tseries.offsets import Hour
|
|
|
|
|
|
class TestTimedeltaIndex:
|
|
def test_union(self):
|
|
|
|
i1 = timedelta_range("1day", periods=5)
|
|
i2 = timedelta_range("3day", periods=5)
|
|
result = i1.union(i2)
|
|
expected = timedelta_range("1day", periods=7)
|
|
tm.assert_index_equal(result, expected)
|
|
|
|
i1 = Int64Index(np.arange(0, 20, 2))
|
|
i2 = timedelta_range(start="1 day", periods=10, freq="D")
|
|
i1.union(i2) # Works
|
|
i2.union(i1) # Fails with "AttributeError: can't set attribute"
|
|
|
|
def test_union_sort_false(self):
|
|
tdi = timedelta_range("1day", periods=5)
|
|
|
|
left = tdi[3:]
|
|
right = tdi[:3]
|
|
|
|
# Check that we are testing the desired code path
|
|
assert left._can_fast_union(right)
|
|
|
|
result = left.union(right)
|
|
tm.assert_index_equal(result, tdi)
|
|
|
|
result = left.union(right, sort=False)
|
|
expected = TimedeltaIndex(["4 Days", "5 Days", "1 Days", "2 Day", "3 Days"])
|
|
tm.assert_index_equal(result, expected)
|
|
|
|
def test_union_coverage(self):
|
|
|
|
idx = TimedeltaIndex(["3d", "1d", "2d"])
|
|
ordered = TimedeltaIndex(idx.sort_values(), freq="infer")
|
|
result = ordered.union(idx)
|
|
tm.assert_index_equal(result, ordered)
|
|
|
|
result = ordered[:0].union(ordered)
|
|
tm.assert_index_equal(result, ordered)
|
|
assert result.freq == ordered.freq
|
|
|
|
def test_union_bug_1730(self):
|
|
|
|
rng_a = timedelta_range("1 day", periods=4, freq="3H")
|
|
rng_b = timedelta_range("1 day", periods=4, freq="4H")
|
|
|
|
result = rng_a.union(rng_b)
|
|
exp = TimedeltaIndex(sorted(set(rng_a) | set(rng_b)))
|
|
tm.assert_index_equal(result, exp)
|
|
|
|
def test_union_bug_1745(self):
|
|
|
|
left = TimedeltaIndex(["1 day 15:19:49.695000"])
|
|
right = TimedeltaIndex(
|
|
["2 day 13:04:21.322000", "1 day 15:27:24.873000", "1 day 15:31:05.350000"]
|
|
)
|
|
|
|
result = left.union(right)
|
|
exp = TimedeltaIndex(sorted(set(left) | set(right)))
|
|
tm.assert_index_equal(result, exp)
|
|
|
|
def test_union_bug_4564(self):
|
|
|
|
left = timedelta_range("1 day", "30d")
|
|
right = left + pd.offsets.Minute(15)
|
|
|
|
result = left.union(right)
|
|
exp = TimedeltaIndex(sorted(set(left) | set(right)))
|
|
tm.assert_index_equal(result, exp)
|
|
|
|
def test_union_freq_infer(self):
|
|
# When taking the union of two TimedeltaIndexes, we infer
|
|
# a freq even if the arguments don't have freq. This matches
|
|
# DatetimeIndex behavior.
|
|
tdi = timedelta_range("1 Day", periods=5)
|
|
left = tdi[[0, 1, 3, 4]]
|
|
right = tdi[[2, 3, 1]]
|
|
|
|
assert left.freq is None
|
|
assert right.freq is None
|
|
|
|
result = left.union(right)
|
|
tm.assert_index_equal(result, tdi)
|
|
assert result.freq == "D"
|
|
|
|
def test_intersection_bug_1708(self):
|
|
index_1 = timedelta_range("1 day", periods=4, freq="h")
|
|
index_2 = index_1 + pd.offsets.Hour(5)
|
|
|
|
with tm.assert_produces_warning(FutureWarning):
|
|
result = index_1 & index_2
|
|
assert len(result) == 0
|
|
|
|
index_1 = timedelta_range("1 day", periods=4, freq="h")
|
|
index_2 = index_1 + pd.offsets.Hour(1)
|
|
|
|
with tm.assert_produces_warning(FutureWarning):
|
|
result = index_1 & index_2
|
|
expected = timedelta_range("1 day 01:00:00", periods=3, freq="h")
|
|
tm.assert_index_equal(result, expected)
|
|
assert result.freq == expected.freq
|
|
|
|
def test_intersection_equal(self, sort):
|
|
# GH 24471 Test intersection outcome given the sort keyword
|
|
# for equal indicies intersection should return the original index
|
|
first = timedelta_range("1 day", periods=4, freq="h")
|
|
second = timedelta_range("1 day", periods=4, freq="h")
|
|
intersect = first.intersection(second, sort=sort)
|
|
if sort is None:
|
|
tm.assert_index_equal(intersect, second.sort_values())
|
|
assert tm.equalContents(intersect, second)
|
|
|
|
# Corner cases
|
|
inter = first.intersection(first, sort=sort)
|
|
assert inter is first
|
|
|
|
@pytest.mark.parametrize("period_1, period_2", [(0, 4), (4, 0)])
|
|
def test_intersection_zero_length(self, period_1, period_2, sort):
|
|
# GH 24471 test for non overlap the intersection should be zero length
|
|
index_1 = timedelta_range("1 day", periods=period_1, freq="h")
|
|
index_2 = timedelta_range("1 day", periods=period_2, freq="h")
|
|
expected = timedelta_range("1 day", periods=0, freq="h")
|
|
result = index_1.intersection(index_2, sort=sort)
|
|
tm.assert_index_equal(result, expected)
|
|
|
|
def test_zero_length_input_index(self, sort):
|
|
# GH 24966 test for 0-len intersections are copied
|
|
index_1 = timedelta_range("1 day", periods=0, freq="h")
|
|
index_2 = timedelta_range("1 day", periods=3, freq="h")
|
|
result = index_1.intersection(index_2, sort=sort)
|
|
assert index_1 is not result
|
|
assert index_2 is not result
|
|
tm.assert_copy(result, index_1)
|
|
|
|
@pytest.mark.parametrize(
|
|
"rng, expected",
|
|
# if target has the same name, it is preserved
|
|
[
|
|
(
|
|
timedelta_range("1 day", periods=5, freq="h", name="idx"),
|
|
timedelta_range("1 day", periods=4, freq="h", name="idx"),
|
|
),
|
|
# if target name is different, it will be reset
|
|
(
|
|
timedelta_range("1 day", periods=5, freq="h", name="other"),
|
|
timedelta_range("1 day", periods=4, freq="h", name=None),
|
|
),
|
|
# if no overlap exists return empty index
|
|
(
|
|
timedelta_range("1 day", periods=10, freq="h", name="idx")[5:],
|
|
TimedeltaIndex([], freq="h", name="idx"),
|
|
),
|
|
],
|
|
)
|
|
def test_intersection(self, rng, expected, sort):
|
|
# GH 4690 (with tz)
|
|
base = timedelta_range("1 day", periods=4, freq="h", name="idx")
|
|
result = base.intersection(rng, sort=sort)
|
|
if sort is None:
|
|
expected = expected.sort_values()
|
|
tm.assert_index_equal(result, expected)
|
|
assert result.name == expected.name
|
|
assert result.freq == expected.freq
|
|
|
|
@pytest.mark.parametrize(
|
|
"rng, expected",
|
|
# part intersection works
|
|
[
|
|
(
|
|
TimedeltaIndex(["5 hour", "2 hour", "4 hour", "9 hour"], name="idx"),
|
|
TimedeltaIndex(["2 hour", "4 hour"], name="idx"),
|
|
),
|
|
# reordered part intersection
|
|
(
|
|
TimedeltaIndex(["2 hour", "5 hour", "5 hour", "1 hour"], name="other"),
|
|
TimedeltaIndex(["1 hour", "2 hour"], name=None),
|
|
),
|
|
# reversed index
|
|
(
|
|
TimedeltaIndex(["1 hour", "2 hour", "4 hour", "3 hour"], name="idx")[
|
|
::-1
|
|
],
|
|
TimedeltaIndex(["1 hour", "2 hour", "4 hour", "3 hour"], name="idx"),
|
|
),
|
|
],
|
|
)
|
|
def test_intersection_non_monotonic(self, rng, expected, sort):
|
|
# 24471 non-monotonic
|
|
base = TimedeltaIndex(["1 hour", "2 hour", "4 hour", "3 hour"], name="idx")
|
|
result = base.intersection(rng, sort=sort)
|
|
if sort is None:
|
|
expected = expected.sort_values()
|
|
tm.assert_index_equal(result, expected)
|
|
assert result.name == expected.name
|
|
|
|
# if reversed order, frequency is still the same
|
|
if all(base == rng[::-1]) and sort is None:
|
|
assert isinstance(result.freq, Hour)
|
|
else:
|
|
assert result.freq is None
|
|
|
|
|
|
class TestTimedeltaIndexDifference:
|
|
def test_difference_freq(self, sort):
|
|
# GH14323: Difference of TimedeltaIndex should not preserve frequency
|
|
|
|
index = timedelta_range("0 days", "5 days", freq="D")
|
|
|
|
other = timedelta_range("1 days", "4 days", freq="D")
|
|
expected = TimedeltaIndex(["0 days", "5 days"], freq=None)
|
|
idx_diff = index.difference(other, sort)
|
|
tm.assert_index_equal(idx_diff, expected)
|
|
tm.assert_attr_equal("freq", idx_diff, expected)
|
|
|
|
other = timedelta_range("2 days", "5 days", freq="D")
|
|
idx_diff = index.difference(other, sort)
|
|
expected = TimedeltaIndex(["0 days", "1 days"], freq=None)
|
|
tm.assert_index_equal(idx_diff, expected)
|
|
tm.assert_attr_equal("freq", idx_diff, expected)
|
|
|
|
def test_difference_sort(self, sort):
|
|
|
|
index = TimedeltaIndex(
|
|
["5 days", "3 days", "2 days", "4 days", "1 days", "0 days"]
|
|
)
|
|
|
|
other = timedelta_range("1 days", "4 days", freq="D")
|
|
idx_diff = index.difference(other, sort)
|
|
|
|
expected = TimedeltaIndex(["5 days", "0 days"], freq=None)
|
|
|
|
if sort is None:
|
|
expected = expected.sort_values()
|
|
|
|
tm.assert_index_equal(idx_diff, expected)
|
|
tm.assert_attr_equal("freq", idx_diff, expected)
|
|
|
|
other = timedelta_range("2 days", "5 days", freq="D")
|
|
idx_diff = index.difference(other, sort)
|
|
expected = TimedeltaIndex(["1 days", "0 days"], freq=None)
|
|
|
|
if sort is None:
|
|
expected = expected.sort_values()
|
|
|
|
tm.assert_index_equal(idx_diff, expected)
|
|
tm.assert_attr_equal("freq", idx_diff, expected)
|