Pattern: PChanged
Outputs a 1 if the value of the input pattern has changed,
or 0 otherwise.
Example output
>>> a = PSequence([1, 0, 1, 2, 2, 2, 1, 0, 0, 1], repeats=1)
>>> b = PChanged(a)
>>> b.all()
[1, 1, 1, 0, 0, 1, 1, 0, 1]
Outputs a 1 if the value of the input pattern has changed,
or 0 otherwise.
>>> a = PSequence([1, 0, 1, 2, 2, 2, 1, 0, 0, 1], repeats=1)
>>> b = PChanged(a)
>>> b.all()
[1, 1, 1, 0, 0, 1, 1, 0, 1]