def __getitem__(self, index):
if isinstance(index, slice):
# Set the new epoch---note that index.start may also be None
if self._epoch is None:
new_epoch = None
elif index.start is None:
new_epoch = self._epoch
else:
if index.start < 0:
raise ValueError('Negative start index not supported')
new_epoch = self._epoch + index.start * self._delta_t
return TimeSeries(Array.__getitem__(self, index), self._delta_t, new_epoch, copy=False)
else:
return Array.__getitem__(self, index)
def __getitem__(self, index):
if isinstance(index, slice):
# Set the new epoch---note that index.start may also be None
if self._epoch is None:
new_epoch = None
elif index.start is None:
new_epoch = self._epoch
else:
if index.start < 0:
index.start += len(self)
new_epoch = self._epoch + index.start * self._delta_t
return TimeSeries(Array.__getitem__(self, index), self._delta_t, new_epoch, copy=False)
else:
return Array.__getitem__(self, index)
def __getitem__(self, index):
if isinstance(index, slice):
# Set the new epoch---note that index.start may also be None
if self._epoch is None:
new_epoch = None
elif index.start is None:
new_epoch = self._epoch
else:
if index.start < 0:
raise ValueError('Negative start index not supported')
new_epoch = self._epoch + index.start * self._delta_t
return TimeSeries(Array.__getitem__(self, index), self._delta_t, new_epoch, copy=False)
else:
return Array.__getitem__(self, index)
def __getitem__(self, index):
if isinstance(index, slice):
if index.start > index.stop:
raise ValueError('start index must be smaller than stop index')
if index.step is None:
new_delta_t = self._delta_t
elif index.step < 0:
raise ValueError('negative step is not supported')
else:
new_delta_t = index.step * self._delta_t
if self._epoch is None:
new_epoch = None
else:
new_epoch = self._epoch + index.start * self._delta_t
return TimeSeries(Array.__getitem__(self, index),
new_delta_t,
new_epoch,
copy=False)
else:
return Array.__getitem__(self, index)
