Description:

morriscounter 0.1.2

Morris Counter

Memory-efficient probabilistic counter namely Morris Counter.
This module based on the following paper:

Robert Morris. Counting large numbers of events in small registers. Communications of the ACM, vol. 21, issue 10, pp. 840-842, 1978.

Currently Morris Counter supports Python 3.5 and higher.
Basic idea of Morris Counter is described as follows:

https://en.wikipedia.org/wiki/Approximate_counting_algorithm
http://yukinoi.hatenablog.com/entry/2015/11/19/220721 (written in Japanse)



INSTALLATION
$ pip install morris_counter
While the Morris Counter works builtin modules, using third-party package (numpy and mmh3) leads to improve memory-usage and computation time.
$ pip install numpy mmh3


USAGE
from morris_counter import MorrisCounter

mc = MorrisCounter(size=1000000, dtype='uint8', radix=2, seed=3282)
mc.count('ZOC')
# => 1
mc.increment('ZOC')
mc.count('ZOC')
# => 2
_ = [mc.increment('ZOC') for _ in range(2000)]
mc.count('ZOC')
# => 2048


CHANGES
0.1.2 (2019-09-11)

First release

License

For personal and professional use. You cannot resell or redistribute these repositories in their original state.

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