Python pandas.errors.NullFrequencyError() Examples
The following are 30
code examples of pandas.errors.NullFrequencyError().
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Example #1
| Source File: test_arithmetic.py From recruit with Apache License 2.0 | 6 votes |
|
def test_tdi_addsub_integer_array_no_freq(self, box):
# GH#19959
tdi = TimedeltaIndex(['1 Day', 'NaT', '3 Hours'])
other = box([14, -1, 16])
with pytest.raises(NullFrequencyError):
tdi + other
with pytest.raises(NullFrequencyError):
other + tdi
with pytest.raises(NullFrequencyError):
tdi - other
with pytest.raises(NullFrequencyError):
other - tdi
# -------------------------------------------------------------
# Binary operations TimedeltaIndex and timedelta-like
# Note: add and sub are tested in tests.test_arithmetic, in-place
# tests are kept here because their behavior is Index-specific
Example #2
| Source File: test_arithmetic.py From coffeegrindsize with MIT License | 6 votes |
|
def test_tdi_addsub_integer_array_no_freq(self, box):
# GH#19959
tdi = TimedeltaIndex(['1 Day', 'NaT', '3 Hours'])
other = box([14, -1, 16])
with pytest.raises(NullFrequencyError):
tdi + other
with pytest.raises(NullFrequencyError):
other + tdi
with pytest.raises(NullFrequencyError):
tdi - other
with pytest.raises(NullFrequencyError):
other - tdi
# -------------------------------------------------------------
# Binary operations TimedeltaIndex and timedelta-like
# Note: add and sub are tested in tests.test_arithmetic, in-place
# tests are kept here because their behavior is Index-specific
Example #3
| Source File: test_timedelta64.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 6 votes |
|
def test_td64arr_add_sub_numeric_arr_invalid(self, box, vec, dtype):
tdser = pd.Series(['59 Days', '59 Days', 'NaT'], dtype='m8[ns]')
tdser = tm.box_expected(tdser, box)
err = TypeError
if box is pd.Index and not dtype.startswith('float'):
err = NullFrequencyError
vector = vec.astype(dtype)
with pytest.raises(err):
tdser + vector
with pytest.raises(err):
vector + tdser
with pytest.raises(err):
tdser - vector
with pytest.raises(err):
vector - tdser
# ------------------------------------------------------------------
# Operations with timedelta-like others
# TODO: this was taken from tests.series.test_ops; de-duplicate
Example #4
| Source File: test_timedelta64.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 6 votes |
|
def test_td64arr_add_sub_numeric_scalar_invalid(self, box_with_array,
scalar):
box = box_with_array
tdser = pd.Series(['59 Days', '59 Days', 'NaT'], dtype='m8[ns]')
tdser = tm.box_expected(tdser, box)
err = TypeError
if box in [pd.Index, tm.to_array] and not isinstance(scalar, float):
err = NullFrequencyError
with pytest.raises(err):
tdser + scalar
with pytest.raises(err):
scalar + tdser
with pytest.raises(err):
tdser - scalar
with pytest.raises(err):
scalar - tdser
Example #5
| Source File: test_timeseries.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 6 votes |
|
def test_shift2(self):
ts = Series(np.random.randn(5),
index=date_range('1/1/2000', periods=5, freq='H'))
result = ts.shift(1, freq='5T')
exp_index = ts.index.shift(1, freq='5T')
tm.assert_index_equal(result.index, exp_index)
# GH #1063, multiple of same base
result = ts.shift(1, freq='4H')
exp_index = ts.index + offsets.Hour(4)
tm.assert_index_equal(result.index, exp_index)
idx = DatetimeIndex(['2000-01-01', '2000-01-02', '2000-01-04'])
msg = "Cannot shift with no freq"
with pytest.raises(NullFrequencyError, match=msg):
idx.shift(1)
Example #6
| Source File: test_arithmetic.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 6 votes |
|
def test_tdi_addsub_integer_array_no_freq(self, box):
# GH#19959
tdi = TimedeltaIndex(['1 Day', 'NaT', '3 Hours'])
other = box([14, -1, 16])
with pytest.raises(NullFrequencyError):
tdi + other
with pytest.raises(NullFrequencyError):
other + tdi
with pytest.raises(NullFrequencyError):
tdi - other
with pytest.raises(NullFrequencyError):
other - tdi
# -------------------------------------------------------------
# Binary operations TimedeltaIndex and timedelta-like
# Note: add and sub are tested in tests.test_arithmetic, in-place
# tests are kept here because their behavior is Index-specific
Example #7
| Source File: test_timedelta64.py From recruit with Apache License 2.0 | 6 votes |
|
def test_td64arr_add_sub_numeric_arr_invalid(self, box, vec, dtype):
tdser = pd.Series(['59 Days', '59 Days', 'NaT'], dtype='m8[ns]')
tdser = tm.box_expected(tdser, box)
err = TypeError
if box is pd.Index and not dtype.startswith('float'):
err = NullFrequencyError
vector = vec.astype(dtype)
with pytest.raises(err):
tdser + vector
with pytest.raises(err):
vector + tdser
with pytest.raises(err):
tdser - vector
with pytest.raises(err):
vector - tdser
# ------------------------------------------------------------------
# Operations with timedelta-like others
# TODO: this was taken from tests.series.test_ops; de-duplicate
Example #8
| Source File: test_timedelta64.py From recruit with Apache License 2.0 | 6 votes |
|
def test_td64arr_add_sub_numeric_scalar_invalid(self, box_with_array,
scalar):
box = box_with_array
tdser = pd.Series(['59 Days', '59 Days', 'NaT'], dtype='m8[ns]')
tdser = tm.box_expected(tdser, box)
err = TypeError
if box in [pd.Index, tm.to_array] and not isinstance(scalar, float):
err = NullFrequencyError
with pytest.raises(err):
tdser + scalar
with pytest.raises(err):
scalar + tdser
with pytest.raises(err):
tdser - scalar
with pytest.raises(err):
scalar - tdser
Example #9
| Source File: test_timeseries.py From recruit with Apache License 2.0 | 6 votes |
|
def test_shift2(self):
ts = Series(np.random.randn(5),
index=date_range('1/1/2000', periods=5, freq='H'))
result = ts.shift(1, freq='5T')
exp_index = ts.index.shift(1, freq='5T')
tm.assert_index_equal(result.index, exp_index)
# GH #1063, multiple of same base
result = ts.shift(1, freq='4H')
exp_index = ts.index + offsets.Hour(4)
tm.assert_index_equal(result.index, exp_index)
idx = DatetimeIndex(['2000-01-01', '2000-01-02', '2000-01-04'])
msg = "Cannot shift with no freq"
with pytest.raises(NullFrequencyError, match=msg):
idx.shift(1)
Example #10
| Source File: test_datetime64.py From recruit with Apache License 2.0 | 5 votes |
|
def test_dti_add_intarray_no_freq(self, int_holder):
# GH#19959
dti = pd.DatetimeIndex(['2016-01-01', 'NaT', '2017-04-05 06:07:08'])
other = int_holder([9, 4, -1])
with pytest.raises(NullFrequencyError):
dti + other
with pytest.raises(NullFrequencyError):
other + dti
with pytest.raises(NullFrequencyError):
dti - other
with pytest.raises(TypeError):
other - dti
# -------------------------------------------------------------
# Binary operations DatetimeIndex and TimedeltaIndex/array
Example #11
| Source File: test_timeseries.py From twitter-stock-recommendation with MIT License | 5 votes |
|
def test_shift2(self):
ts = Series(np.random.randn(5),
index=date_range('1/1/2000', periods=5, freq='H'))
result = ts.shift(1, freq='5T')
exp_index = ts.index.shift(1, freq='5T')
tm.assert_index_equal(result.index, exp_index)
# GH #1063, multiple of same base
result = ts.shift(1, freq='4H')
exp_index = ts.index + offsets.Hour(4)
tm.assert_index_equal(result.index, exp_index)
idx = DatetimeIndex(['2000-01-01', '2000-01-02', '2000-01-04'])
pytest.raises(NullFrequencyError, idx.shift, 1)
Example #12
| Source File: test_arithmetic.py From twitter-stock-recommendation with MIT License | 5 votes |
|
def test_dti_shift_no_freq(self):
# GH#19147
dti = pd.DatetimeIndex(['2011-01-01 10:00', '2011-01-01'], freq=None)
with pytest.raises(NullFrequencyError):
dti.shift(2)
Example #13
| Source File: test_arithmetic.py From twitter-stock-recommendation with MIT License | 5 votes |
|
def test_shift_no_freq(self):
# GH#19147
tdi = TimedeltaIndex(['1 days 01:00:00', '2 days 01:00:00'], freq=None)
with pytest.raises(NullFrequencyError):
tdi.shift(2)
# -------------------------------------------------------------
Example #14
| Source File: test_arithmetic.py From coffeegrindsize with MIT License | 5 votes |
|
def test_dti_shift_no_freq(self):
# GH#19147
dti = pd.DatetimeIndex(['2011-01-01 10:00', '2011-01-01'], freq=None)
with pytest.raises(NullFrequencyError):
dti.shift(2)
Example #15
| Source File: test_arithmetic.py From recruit with Apache License 2.0 | 5 votes |
|
def test_shift_no_freq(self):
# GH#19147
tdi = TimedeltaIndex(['1 days 01:00:00', '2 days 01:00:00'], freq=None)
with pytest.raises(NullFrequencyError):
tdi.shift(2)
# -------------------------------------------------------------
# Binary operations TimedeltaIndex and integer
Example #16
| Source File: test_arithmetic.py From coffeegrindsize with MIT License | 5 votes |
|
def test_shift_no_freq(self):
# GH#19147
tdi = TimedeltaIndex(['1 days 01:00:00', '2 days 01:00:00'], freq=None)
with pytest.raises(NullFrequencyError):
tdi.shift(2)
# -------------------------------------------------------------
# Binary operations TimedeltaIndex and integer
Example #17
| Source File: ops.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
|
def dispatch_to_index_op(op, left, right, index_class):
"""
Wrap Series left in the given index_class to delegate the operation op
to the index implementation. DatetimeIndex and TimedeltaIndex perform
type checking, timezone handling, overflow checks, etc.
Parameters
----------
op : binary operator (operator.add, operator.sub, ...)
left : Series
right : object
index_class : DatetimeIndex or TimedeltaIndex
Returns
-------
result : object, usually DatetimeIndex, TimedeltaIndex, or Series
"""
left_idx = index_class(left)
# avoid accidentally allowing integer add/sub. For datetime64[tz] dtypes,
# left_idx may inherit a freq from a cached DatetimeIndex.
# See discussion in GH#19147.
if getattr(left_idx, 'freq', None) is not None:
left_idx = left_idx._shallow_copy(freq=None)
try:
result = op(left_idx, right)
except NullFrequencyError:
# DatetimeIndex and TimedeltaIndex with freq == None raise ValueError
# on add/sub of integers (or int-like). We re-raise as a TypeError.
raise TypeError('incompatible type for a datetime/timedelta '
'operation [{name}]'.format(name=op.__name__))
return result
Example #18
| Source File: test_datetime64.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
|
def test_dti_add_intarray_no_freq(self, int_holder):
# GH#19959
dti = pd.DatetimeIndex(['2016-01-01', 'NaT', '2017-04-05 06:07:08'])
other = int_holder([9, 4, -1])
with pytest.raises(NullFrequencyError):
dti + other
with pytest.raises(NullFrequencyError):
other + dti
with pytest.raises(NullFrequencyError):
dti - other
with pytest.raises(TypeError):
other - dti
# -------------------------------------------------------------
# Binary operations DatetimeIndex and TimedeltaIndex/array
Example #19
| Source File: test_arithmetic.py From recruit with Apache License 2.0 | 5 votes |
|
def test_dti_shift_no_freq(self):
# GH#19147
dti = pd.DatetimeIndex(['2011-01-01 10:00', '2011-01-01'], freq=None)
with pytest.raises(NullFrequencyError):
dti.shift(2)
Example #20
| Source File: test_timedelta64.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
|
def test_td64arr_add_intlike(self, box_with_array):
# GH#19123
tdi = TimedeltaIndex(['59 days', '59 days', 'NaT'])
ser = tm.box_expected(tdi, box_with_array)
err = TypeError
if box_with_array in [pd.Index, tm.to_array]:
err = NullFrequencyError
other = Series([20, 30, 40], dtype='uint8')
# TODO: separate/parametrize
with pytest.raises(err):
ser + 1
with pytest.raises(err):
ser - 1
with pytest.raises(err):
ser + other
with pytest.raises(err):
ser - other
with pytest.raises(err):
ser + np.array(other)
with pytest.raises(err):
ser - np.array(other)
with pytest.raises(err):
ser + pd.Index(other)
with pytest.raises(err):
ser - pd.Index(other)
Example #21
| Source File: test_arithmetic.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
|
def test_dti_shift_no_freq(self):
# GH#19147
dti = pd.DatetimeIndex(['2011-01-01 10:00', '2011-01-01'], freq=None)
with pytest.raises(NullFrequencyError):
dti.shift(2)
Example #22
| Source File: test_timedelta64.py From recruit with Apache License 2.0 | 5 votes |
|
def test_td64arr_add_intlike(self, box_with_array):
# GH#19123
tdi = TimedeltaIndex(['59 days', '59 days', 'NaT'])
ser = tm.box_expected(tdi, box_with_array)
err = TypeError
if box_with_array in [pd.Index, tm.to_array]:
err = NullFrequencyError
other = Series([20, 30, 40], dtype='uint8')
# TODO: separate/parametrize
with pytest.raises(err):
ser + 1
with pytest.raises(err):
ser - 1
with pytest.raises(err):
ser + other
with pytest.raises(err):
ser - other
with pytest.raises(err):
ser + np.array(other)
with pytest.raises(err):
ser - np.array(other)
with pytest.raises(err):
ser + pd.Index(other)
with pytest.raises(err):
ser - pd.Index(other)
Example #23
| Source File: test_arithmetic.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 5 votes |
|
def test_shift_no_freq(self):
# GH#19147
tdi = TimedeltaIndex(['1 days 01:00:00', '2 days 01:00:00'], freq=None)
with pytest.raises(NullFrequencyError):
tdi.shift(2)
# -------------------------------------------------------------
# Binary operations TimedeltaIndex and integer
Example #24
| Source File: datetimelike.py From vnpy_crypto with MIT License | 5 votes |
|
def shift(self, n, freq=None):
"""
Specialized shift which produces a DatetimeIndex
Parameters
----------
n : int
Periods to shift by
freq : DateOffset or timedelta-like, optional
Returns
-------
shifted : DatetimeIndex
"""
if freq is not None and freq != self.freq:
if isinstance(freq, compat.string_types):
freq = frequencies.to_offset(freq)
offset = n * freq
result = self + offset
if hasattr(self, 'tz'):
result._tz = self.tz
return result
if n == 0:
# immutable so OK
return self
if self.freq is None:
raise NullFrequencyError("Cannot shift with no freq")
start = self[0] + n * self.freq
end = self[-1] + n * self.freq
attribs = self._get_attributes_dict()
attribs['start'] = start
attribs['end'] = end
return type(self)(**attribs)
Example #25
| Source File: test_timeseries.py From vnpy_crypto with MIT License | 5 votes |
|
def test_shift2(self):
ts = Series(np.random.randn(5),
index=date_range('1/1/2000', periods=5, freq='H'))
result = ts.shift(1, freq='5T')
exp_index = ts.index.shift(1, freq='5T')
tm.assert_index_equal(result.index, exp_index)
# GH #1063, multiple of same base
result = ts.shift(1, freq='4H')
exp_index = ts.index + offsets.Hour(4)
tm.assert_index_equal(result.index, exp_index)
idx = DatetimeIndex(['2000-01-01', '2000-01-02', '2000-01-04'])
pytest.raises(NullFrequencyError, idx.shift, 1)
Example #26
| Source File: test_arithmetic.py From vnpy_crypto with MIT License | 5 votes |
|
def test_dti_shift_no_freq(self):
# GH#19147
dti = pd.DatetimeIndex(['2011-01-01 10:00', '2011-01-01'], freq=None)
with pytest.raises(NullFrequencyError):
dti.shift(2)
Example #27
| Source File: test_arithmetic.py From vnpy_crypto with MIT License | 5 votes |
|
def test_shift_no_freq(self):
# GH#19147
tdi = TimedeltaIndex(['1 days 01:00:00', '2 days 01:00:00'], freq=None)
with pytest.raises(NullFrequencyError):
tdi.shift(2)
# -------------------------------------------------------------
Example #28
| Source File: ops.py From recruit with Apache License 2.0 | 5 votes |
|
def dispatch_to_index_op(op, left, right, index_class):
"""
Wrap Series left in the given index_class to delegate the operation op
to the index implementation. DatetimeIndex and TimedeltaIndex perform
type checking, timezone handling, overflow checks, etc.
Parameters
----------
op : binary operator (operator.add, operator.sub, ...)
left : Series
right : object
index_class : DatetimeIndex or TimedeltaIndex
Returns
-------
result : object, usually DatetimeIndex, TimedeltaIndex, or Series
"""
left_idx = index_class(left)
# avoid accidentally allowing integer add/sub. For datetime64[tz] dtypes,
# left_idx may inherit a freq from a cached DatetimeIndex.
# See discussion in GH#19147.
if getattr(left_idx, 'freq', None) is not None:
left_idx = left_idx._shallow_copy(freq=None)
try:
result = op(left_idx, right)
except NullFrequencyError:
# DatetimeIndex and TimedeltaIndex with freq == None raise ValueError
# on add/sub of integers (or int-like). We re-raise as a TypeError.
raise TypeError('incompatible type for a datetime/timedelta '
'operation [{name}]'.format(name=op.__name__))
return result
Example #29
| Source File: test_timedelta64.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 4 votes |
|
def test_addition_ops(self):
# with datetimes/timedelta and tdi/dti
tdi = TimedeltaIndex(['1 days', pd.NaT, '2 days'], name='foo')
dti = pd.date_range('20130101', periods=3, name='bar')
td = Timedelta('1 days')
dt = Timestamp('20130101')
result = tdi + dt
expected = DatetimeIndex(['20130102', pd.NaT, '20130103'], name='foo')
tm.assert_index_equal(result, expected)
result = dt + tdi
expected = DatetimeIndex(['20130102', pd.NaT, '20130103'], name='foo')
tm.assert_index_equal(result, expected)
result = td + tdi
expected = TimedeltaIndex(['2 days', pd.NaT, '3 days'], name='foo')
tm.assert_index_equal(result, expected)
result = tdi + td
expected = TimedeltaIndex(['2 days', pd.NaT, '3 days'], name='foo')
tm.assert_index_equal(result, expected)
# unequal length
pytest.raises(ValueError, lambda: tdi + dti[0:1])
pytest.raises(ValueError, lambda: tdi[0:1] + dti)
# random indexes
with pytest.raises(NullFrequencyError):
tdi + pd.Int64Index([1, 2, 3])
# this is a union!
# pytest.raises(TypeError, lambda : Int64Index([1,2,3]) + tdi)
result = tdi + dti # name will be reset
expected = DatetimeIndex(['20130102', pd.NaT, '20130105'])
tm.assert_index_equal(result, expected)
result = dti + tdi # name will be reset
expected = DatetimeIndex(['20130102', pd.NaT, '20130105'])
tm.assert_index_equal(result, expected)
result = dt + td
expected = Timestamp('20130102')
assert result == expected
result = td + dt
expected = Timestamp('20130102')
assert result == expected
# TODO: Needs more informative name, probably split up into
# more targeted tests
Example #30
| Source File: test_timedelta64.py From recruit with Apache License 2.0 | 4 votes |
|
def test_addition_ops(self):
# with datetimes/timedelta and tdi/dti
tdi = TimedeltaIndex(['1 days', pd.NaT, '2 days'], name='foo')
dti = pd.date_range('20130101', periods=3, name='bar')
td = Timedelta('1 days')
dt = Timestamp('20130101')
result = tdi + dt
expected = DatetimeIndex(['20130102', pd.NaT, '20130103'], name='foo')
tm.assert_index_equal(result, expected)
result = dt + tdi
expected = DatetimeIndex(['20130102', pd.NaT, '20130103'], name='foo')
tm.assert_index_equal(result, expected)
result = td + tdi
expected = TimedeltaIndex(['2 days', pd.NaT, '3 days'], name='foo')
tm.assert_index_equal(result, expected)
result = tdi + td
expected = TimedeltaIndex(['2 days', pd.NaT, '3 days'], name='foo')
tm.assert_index_equal(result, expected)
# unequal length
pytest.raises(ValueError, lambda: tdi + dti[0:1])
pytest.raises(ValueError, lambda: tdi[0:1] + dti)
# random indexes
with pytest.raises(NullFrequencyError):
tdi + pd.Int64Index([1, 2, 3])
# this is a union!
# pytest.raises(TypeError, lambda : Int64Index([1,2,3]) + tdi)
result = tdi + dti # name will be reset
expected = DatetimeIndex(['20130102', pd.NaT, '20130105'])
tm.assert_index_equal(result, expected)
result = dti + tdi # name will be reset
expected = DatetimeIndex(['20130102', pd.NaT, '20130105'])
tm.assert_index_equal(result, expected)
result = dt + td
expected = Timestamp('20130102')
assert result == expected
result = td + dt
expected = Timestamp('20130102')
assert result == expected
# TODO: Needs more informative name, probably split up into
# more targeted tests
