def unprime_label(self, labels=None):
"""
Remove the last prime (') from all `label` in `labels`
Parameters
----------
labels : str or list of str, optional
Labels to unprime. If None all labels of the tensor will be
unprimed.
Examples
--------
>>> t = Tensor(np.array([1,0]), labels=["idx"])
>>> t.prime_label("idx")
>>> print(t)
Tensor object: shape = (2,), labels = ["idx'"]
>>> t.prime_label("idx")
>>> print(t)
Tensor object: shape = (2,), labels = ["idx''"]
>>> t.unprime_label("idx")
>>> print(t)
Tensor object: shape = (2,), labels = ["idx'"]
>>> t.unprime_label("idx")
>>> print(t)
Tensor object: shape = (2,), labels = ["idx"]
"""
if labels is None:
labels = self.labels
elif not isinstance(labels, list):
labels = [labels]
for i, label in enumerate(self.labels):
for noprime in labels:
if lbl.noprime_label(label) == noprime:
self.labels[i] = lbl.unprime_label(self.labels[i])
def prime_label(self, labels=None):
"""
Add a prime (') to all `label` in `labels`
Parameters
----------
labels : str or list of str, optional
Labels to prime. If None all labels of the tensor will be primed.
See also
-------
unprime_label
"""
if labels is None:
labels = self.labels
elif not isinstance(labels, list):
labels = [labels]
for i, label in enumerate(self.labels):
for noprime in labels:
if lbl.noprime_label(label) == noprime:
self.labels[i] = lbl.prime_label(self.labels[i])