@@ -829,6 +829,7 @@ Period

- Bug in inferring an incorrect ``freq`` when passing a string to :class:`Period` microseconds that are a multiple of 1000 (:issue:`46811`)

- Bug in constructing a :class:`Period` from a :class:`Timestamp` or ``np.datetime64`` object with non-zero nanoseconds and ``freq="ns"`` incorrectly truncating the nanoseconds (:issue:`46811`)

- Bug in adding ``np.timedelta64("NaT", "ns")`` to a :class:`Period` with a timedelta-like freq incorrectly raising ``IncompatibleFrequency`` instead of returning ``NaT`` (:issue:`47196`)

- Bug in adding an array of integers to an array with :class:`PeriodDtype` giving incorrect results when ``dtype.freq.n > 1`` (:issue:`47209`)

-

Plotting

@@ -1317,7 +1317,7 @@ def __add__(self, other):

if not is_period_dtype(self.dtype):

raise integer_op_not_supported(self)

result = cast("PeriodArray", self)._addsub_int_array_or_scalar(

other, operator.add

other * self.freq.n, operator.add

)

else:

# Includes Categorical, other ExtensionArrays

@@ -1379,7 +1379,7 @@ def __sub__(self, other):

if not is_period_dtype(self.dtype):

raise integer_op_not_supported(self)

result = cast("PeriodArray", self)._addsub_int_array_or_scalar(

other, operator.sub

other * self.freq.n, operator.sub

)

else:

# Includes ExtensionArrays, float_dtype

@@ -914,6 +914,19 @@ def test_pi_sub_intlike(self, five):

exp = rng + (-five)

tm.assert_index_equal(result, exp)

def test_pi_add_sub_int_array_freqn_gt1(self):

# GH#47209 test adding array of ints when freq.n > 1 matches

# scalar behavior

pi = period_range("2016-01-01", periods=10, freq="2D")

arr = np.arange(10)

result = pi + arr

expected = pd.Index([x + y for x, y in zip(pi, arr)])

tm.assert_index_equal(result, expected)

result = pi - arr

expected = pd.Index([x - y for x, y in zip(pi, arr)])

tm.assert_index_equal(result, expected)

def test_pi_sub_isub_offset(self):

# offset

# DateOffset