Raymond Hettinger <raymond.hettin...@gmail.com> added the comment:
Here's what I propose to add:
def total(self):
return sum(self.values())
def scaled_by(self, factor):
return Counter({elem : count * factor for elem, count in self.items()})
def scaled_to(self, target_total=1.0):
ratio = target_total / self.total()
return self.scaled_by(ratio)
These cover the common cases and they don't mutate the counter.
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versions: +Python 3.10 -Python 3.8
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue25478>
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