def _maybe_convert_timedelta(self, other): if isinstance(other, (timedelta, np.timedelta64, offsets.Tick)): offset = frequencies.to_offset(self.freq.rule_code) if isinstance(offset, offsets.Tick): nanos = tslib._delta_to_nanoseconds(other) offset_nanos = tslib._delta_to_nanoseconds(offset) if nanos % offset_nanos == 0: return nanos // offset_nanos elif isinstance(other, offsets.DateOffset): freqstr = other.rule_code base = frequencies.get_base_alias(freqstr) if base == self.freq.rule_code: return other.n msg = _DIFFERENT_FREQ_INDEX.format(self.freqstr, other.freqstr) raise IncompatibleFrequency(msg) elif isinstance(other, np.ndarray): if is_integer_dtype(other): return other elif is_timedelta64_dtype(other): offset = frequencies.to_offset(self.freq) if isinstance(offset, offsets.Tick): nanos = tslib._delta_to_nanoseconds(other) offset_nanos = tslib._delta_to_nanoseconds(offset) if (nanos % offset_nanos).all() == 0: return nanos // offset_nanos elif is_integer(other): # integer is passed to .shift via # _add_datetimelike_methods basically # but ufunc may pass integer to _add_delta return other # raise when input doesn't have freq msg = "Input has different freq from PeriodIndex(freq={0})" raise IncompatibleFrequency(msg.format(self.freqstr))
def _maybe_convert_timedelta(self, other): if isinstance(other, (timedelta, np.timedelta64, offsets.Tick)): offset = frequencies.to_offset(self.freq.rule_code) if isinstance(offset, offsets.Tick): nanos = tslib._delta_to_nanoseconds(other) offset_nanos = tslib._delta_to_nanoseconds(offset) if nanos % offset_nanos == 0: return nanos // offset_nanos elif isinstance(other, offsets.DateOffset): freqstr = other.rule_code base = frequencies.get_base_alias(freqstr) if base == self.freq.rule_code: return other.n msg = _DIFFERENT_FREQ_INDEX.format(self.freqstr, other.freqstr) raise IncompatibleFrequency(msg) elif isinstance(other, np.ndarray): if is_integer_dtype(other): return other elif is_timedelta64_dtype(other): offset = frequencies.to_offset(self.freq) if isinstance(offset, offsets.Tick): nanos = tslib._delta_to_nanoseconds(other) offset_nanos = tslib._delta_to_nanoseconds(offset) if (nanos % offset_nanos).all() == 0: return nanos // offset_nanos elif is_integer(other): # integer is passed to .shift via # _add_datetimelike_methods basically # but ufunc may pass integer to _add_delta return other # raise when input doesn't have freq msg = "Input has different freq from PeriodIndex(freq={0})" raise IncompatibleFrequency(msg.format(self.freqstr))
def _add_delta_td(self, other): # add a delta of a timedeltalike # return the i8 result view inc = libts._delta_to_nanoseconds(other) new_values = checked_add_with_arr(self.asi8, inc, arr_mask=self._isnan).view('i8') if self.hasnans: new_values[self._isnan] = iNaT return new_values.view('i8')
def _add_delta_td(self, other): # add a delta of a timedeltalike # return the i8 result view inc = libts._delta_to_nanoseconds(other) new_values = checked_add_with_arr(self.asi8, inc, arr_mask=self._isnan).view('i8') if self.hasnans: new_values[self._isnan] = iNaT return new_values.view('i8')