def test_index_unique(dups):
uniques = dups.index.unique()
expected = DatetimeIndex([datetime(2000, 1, 2), datetime(2000, 1, 3),
datetime(2000, 1, 4), datetime(2000, 1, 5)])
assert uniques.dtype == 'M8[ns]' # sanity
tm.assert_index_equal(uniques, expected)
assert dups.index.nunique() == 4
# #2563
assert isinstance(uniques, DatetimeIndex)
dups_local = dups.index.tz_localize('US/Eastern')
dups_local.name = 'foo'
result = dups_local.unique()
expected = DatetimeIndex(expected, name='foo')
expected = expected.tz_localize('US/Eastern')
assert result.tz is not None
assert result.name == 'foo'
tm.assert_index_equal(result, expected)
# NaT, note this is excluded
arr = [1370745748 + t for t in range(20)] + [tslib.iNaT]
idx = DatetimeIndex(arr * 3)
tm.assert_index_equal(idx.unique(), DatetimeIndex(arr))
assert idx.nunique() == 20
assert idx.nunique(dropna=False) == 21
arr = [Timestamp('2013-06-09 02:42:28') + timedelta(seconds=t)
for t in range(20)] + [NaT]
idx = DatetimeIndex(arr * 3)
tm.assert_index_equal(idx.unique(), DatetimeIndex(arr))
assert idx.nunique() == 20
assert idx.nunique(dropna=False) == 21
def test_index_unique(dups):
uniques = dups.index.unique()
expected = DatetimeIndex([datetime(2000, 1, 2), datetime(2000, 1, 3),
datetime(2000, 1, 4), datetime(2000, 1, 5)])
assert uniques.dtype == 'M8[ns]' # sanity
tm.assert_index_equal(uniques, expected)
assert dups.index.nunique() == 4
# #2563
assert isinstance(uniques, DatetimeIndex)
dups_local = dups.index.tz_localize('US/Eastern')
dups_local.name = 'foo'
result = dups_local.unique()
expected = DatetimeIndex(expected, name='foo')
expected = expected.tz_localize('US/Eastern')
assert result.tz is not None
assert result.name == 'foo'
tm.assert_index_equal(result, expected)
# NaT, note this is excluded
arr = [1370745748 + t for t in range(20)] + [iNaT]
idx = DatetimeIndex(arr * 3)
tm.assert_index_equal(idx.unique(), DatetimeIndex(arr))
assert idx.nunique() == 20
assert idx.nunique(dropna=False) == 21
arr = [Timestamp('2013-06-09 02:42:28') + timedelta(seconds=t)
for t in range(20)] + [NaT]
idx = DatetimeIndex(arr * 3)
tm.assert_index_equal(idx.unique(), DatetimeIndex(arr))
assert idx.nunique() == 20
assert idx.nunique(dropna=False) == 21
def test_index_unique2():
# NaT, note this is excluded
arr = [1370745748 + t for t in range(20)] + [NaT.value]
idx = DatetimeIndex(arr * 3)
tm.assert_index_equal(idx.unique(), DatetimeIndex(arr))
assert idx.nunique() == 20
assert idx.nunique(dropna=False) == 21
def test_index_unique3():
arr = [
Timestamp("2013-06-09 02:42:28") + timedelta(seconds=t) for t in range(20)
] + [NaT]
idx = DatetimeIndex(arr * 3)
tm.assert_index_equal(idx.unique(), DatetimeIndex(arr))
assert idx.nunique() == 20
assert idx.nunique(dropna=False) == 21
def test_index_unique(rand_series_with_duplicate_datetimeindex):
dups = rand_series_with_duplicate_datetimeindex
index = dups.index
uniques = index.unique()
expected = DatetimeIndex([
datetime(2000, 1, 2),
datetime(2000, 1, 3),
datetime(2000, 1, 4),
datetime(2000, 1, 5),
])
assert uniques.dtype == "M8[ns]" # sanity
tm.assert_index_equal(uniques, expected)
assert index.nunique() == 4
# GH#2563
assert isinstance(uniques, DatetimeIndex)
dups_local = index.tz_localize("US/Eastern")
dups_local.name = "foo"
result = dups_local.unique()
expected = DatetimeIndex(expected, name="foo")
expected = expected.tz_localize("US/Eastern")
assert result.tz is not None
assert result.name == "foo"
tm.assert_index_equal(result, expected)
# NaT, note this is excluded
arr = [1370745748 + t for t in range(20)] + [NaT.value]
idx = DatetimeIndex(arr * 3)
tm.assert_index_equal(idx.unique(), DatetimeIndex(arr))
assert idx.nunique() == 20
assert idx.nunique(dropna=False) == 21
arr = [
Timestamp("2013-06-09 02:42:28") + timedelta(seconds=t)
for t in range(20)
] + [NaT]
idx = DatetimeIndex(arr * 3)
tm.assert_index_equal(idx.unique(), DatetimeIndex(arr))
assert idx.nunique() == 20
assert idx.nunique(dropna=False) == 21
