def test_datetimeindex_accessors6(self):
# GH 6538: Check that DatetimeIndex and its TimeStamp elements
# return the same weekofyear accessor close to new year w/ tz
dates = ["2013/12/29", "2013/12/30", "2013/12/31"]
dates = DatetimeIndex(dates, tz="Europe/Brussels")
expected = [52, 1, 1]
assert dates.isocalendar().week.tolist() == expected
assert [d.weekofyear for d in dates] == expected
def __call__(self, index: pd.DatetimeIndex) -> np.ndarray:
# TODO:
# * pandas >= 1.1 does not support `.week`
# * pandas == 1.0 does not support `.isocalendar()`
# as soon as we drop support for `pandas == 1.0`, we should remove this
try:
week = index.isocalendar().week
except AttributeError:
week = index.week
return (week - 1).map(float)
def test_isocalendar_returns_correct_values_close_to_new_year_with_tz():
# GH 6538: Check that DatetimeIndex and its TimeStamp elements
# return the same weekofyear accessor close to new year w/ tz
dates = ["2013/12/29", "2013/12/30", "2013/12/31"]
dates = DatetimeIndex(dates, tz="Europe/Brussels")
result = dates.isocalendar()
expected_data_frame = pd.DataFrame(
[[2013, 52, 7], [2014, 1, 1], [2014, 1, 2]],
columns=["year", "week", "day"],
dtype="UInt32",
)
tm.assert_frame_equal(result, expected_data_frame)
def __call__(self, index: pd.DatetimeIndex) -> np.ndarray:
return (index.isocalendar().week - 1).map(float)
def __call__(self, index: pd.DatetimeIndex) -> np.ndarray:
return (index.isocalendar().week - 1) / 52.0 - 0.5
def test_datetimeindex_accessors(self):
dti_naive = pd.date_range(freq="D",
start=datetime(1998, 1, 1),
periods=365)
# GH#13303
dti_tz = pd.date_range(freq="D",
start=datetime(1998, 1, 1),
periods=365,
tz="US/Eastern")
for dti in [dti_naive, dti_tz]:
assert dti.year[0] == 1998
assert dti.month[0] == 1
assert dti.day[0] == 1
assert dti.hour[0] == 0
assert dti.minute[0] == 0
assert dti.second[0] == 0
assert dti.microsecond[0] == 0
assert dti.dayofweek[0] == 3
assert dti.dayofyear[0] == 1
assert dti.dayofyear[120] == 121
assert dti.isocalendar().week[0] == 1
assert dti.isocalendar().week[120] == 18
assert dti.quarter[0] == 1
assert dti.quarter[120] == 2
assert dti.days_in_month[0] == 31
assert dti.days_in_month[90] == 30
assert dti.is_month_start[0]
assert not dti.is_month_start[1]
assert dti.is_month_start[31]
assert dti.is_quarter_start[0]
assert dti.is_quarter_start[90]
assert dti.is_year_start[0]
assert not dti.is_year_start[364]
assert not dti.is_month_end[0]
assert dti.is_month_end[30]
assert not dti.is_month_end[31]
assert dti.is_month_end[364]
assert not dti.is_quarter_end[0]
assert not dti.is_quarter_end[30]
assert dti.is_quarter_end[89]
assert dti.is_quarter_end[364]
assert not dti.is_year_end[0]
assert dti.is_year_end[364]
assert len(dti.year) == 365
assert len(dti.month) == 365
assert len(dti.day) == 365
assert len(dti.hour) == 365
assert len(dti.minute) == 365
assert len(dti.second) == 365
assert len(dti.microsecond) == 365
assert len(dti.dayofweek) == 365
assert len(dti.dayofyear) == 365
assert len(dti.isocalendar()) == 365
assert len(dti.quarter) == 365
assert len(dti.is_month_start) == 365
assert len(dti.is_month_end) == 365
assert len(dti.is_quarter_start) == 365
assert len(dti.is_quarter_end) == 365
assert len(dti.is_year_start) == 365
assert len(dti.is_year_end) == 365
dti.name = "name"
# non boolean accessors -> return Index
for accessor in DatetimeIndex._field_ops:
if accessor in ["week", "weekofyear"]:
# GH#33595 Deprecate week and weekofyear
continue
res = getattr(dti, accessor)
assert len(res) == 365
assert isinstance(res, Index)
assert res.name == "name"
# boolean accessors -> return array
for accessor in DatetimeIndex._bool_ops:
res = getattr(dti, accessor)
assert len(res) == 365
assert isinstance(res, np.ndarray)
# test boolean indexing
res = dti[dti.is_quarter_start]
exp = dti[[0, 90, 181, 273]]
tm.assert_index_equal(res, exp)
res = dti[dti.is_leap_year]
exp = DatetimeIndex([], freq="D", tz=dti.tz, name="name")
tm.assert_index_equal(res, exp)
dti = pd.date_range(freq="BQ-FEB",
start=datetime(1998, 1, 1),
periods=4)
assert sum(dti.is_quarter_start) == 0
assert sum(dti.is_quarter_end) == 4
assert sum(dti.is_year_start) == 0
assert sum(dti.is_year_end) == 1
# Ensure is_start/end accessors throw ValueError for CustomBusinessDay,
bday_egypt = offsets.CustomBusinessDay(weekmask="Sun Mon Tue Wed Thu")
dti = date_range(datetime(2013, 4, 30), periods=5, freq=bday_egypt)
msg = "Custom business days is not supported by is_month_start"
with pytest.raises(ValueError, match=msg):
dti.is_month_start
dti = DatetimeIndex(["2000-01-01", "2000-01-02", "2000-01-03"])
assert dti.is_month_start[0] == 1
tests = [
(Timestamp("2013-06-01", freq="M").is_month_start, 1),
(Timestamp("2013-06-01", freq="BM").is_month_start, 0),
(Timestamp("2013-06-03", freq="M").is_month_start, 0),
(Timestamp("2013-06-03", freq="BM").is_month_start, 1),
(Timestamp("2013-02-28", freq="Q-FEB").is_month_end, 1),
(Timestamp("2013-02-28", freq="Q-FEB").is_quarter_end, 1),
(Timestamp("2013-02-28", freq="Q-FEB").is_year_end, 1),
(Timestamp("2013-03-01", freq="Q-FEB").is_month_start, 1),
(Timestamp("2013-03-01", freq="Q-FEB").is_quarter_start, 1),
(Timestamp("2013-03-01", freq="Q-FEB").is_year_start, 1),
(Timestamp("2013-03-31", freq="QS-FEB").is_month_end, 1),
(Timestamp("2013-03-31", freq="QS-FEB").is_quarter_end, 0),
(Timestamp("2013-03-31", freq="QS-FEB").is_year_end, 0),
(Timestamp("2013-02-01", freq="QS-FEB").is_month_start, 1),
(Timestamp("2013-02-01", freq="QS-FEB").is_quarter_start, 1),
(Timestamp("2013-02-01", freq="QS-FEB").is_year_start, 1),
(Timestamp("2013-06-30", freq="BQ").is_month_end, 0),
(Timestamp("2013-06-30", freq="BQ").is_quarter_end, 0),
(Timestamp("2013-06-30", freq="BQ").is_year_end, 0),
(Timestamp("2013-06-28", freq="BQ").is_month_end, 1),
(Timestamp("2013-06-28", freq="BQ").is_quarter_end, 1),
(Timestamp("2013-06-28", freq="BQ").is_year_end, 0),
(Timestamp("2013-06-30", freq="BQS-APR").is_month_end, 0),
(Timestamp("2013-06-30", freq="BQS-APR").is_quarter_end, 0),
(Timestamp("2013-06-30", freq="BQS-APR").is_year_end, 0),
(Timestamp("2013-06-28", freq="BQS-APR").is_month_end, 1),
(Timestamp("2013-06-28", freq="BQS-APR").is_quarter_end, 1),
(Timestamp("2013-03-29", freq="BQS-APR").is_year_end, 1),
(Timestamp("2013-11-01", freq="AS-NOV").is_year_start, 1),
(Timestamp("2013-10-31", freq="AS-NOV").is_year_end, 1),
(Timestamp("2012-02-01").days_in_month, 29),
(Timestamp("2013-02-01").days_in_month, 28),
]
for ts, value in tests:
assert ts == value
# GH 6538: Check that DatetimeIndex and its TimeStamp elements
# return the same weekofyear accessor close to new year w/ tz
dates = ["2013/12/29", "2013/12/30", "2013/12/31"]
dates = DatetimeIndex(dates, tz="Europe/Brussels")
expected = [52, 1, 1]
assert dates.isocalendar().week.tolist() == expected
assert [d.weekofyear for d in dates] == expected
def __call__(self, index: pd.DatetimeIndex) -> np.ndarray:
if self.normalized:
return pd.Int64Index(index.isocalendar().week) / 51.0 - 0.5
else:
return pd.Int64Index(index.isocalendar().week).map(float)
