Python implementation of the Hyper LogLog and Sliding Hyper LogLog cardinality counter algorithms.
Installation:
Use pip install hyperloglog to install from PyPI.
Usage:
import hyperloglog
hll = hyperloglog.HyperLogLog(0.01) # accept 1% counting error
hll.add("hello")
print(len(hll)) # 1
hll.add("hello")
print(len(hll)) # 1 as items aren't added more than once
hll.add("hello again")
print(len(hll)) # 2If we add a further 1000 random strings (giving a total of 1002 strings) we’ll have a count roughly within 1% of the true value, in this case it counts 1007 (within +/- 10.2 of the true value)
# add 1000 random 30 char strings to hll
import random
import string
[hll.add("".join([string.ascii_letters[random.randint(0, len(string.ascii_letters)-1)] for n in range(30)])) for m in range(1000)]
print(len(hll)) # 1007Changes:
Added Sliding window HLL version
Added bias correction from HLL++
References:
1 maintainer
Metadata
1 maintainer
Release files for hyperloglog 0.1.8
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| File | Size | Uploaded | Provenance | Actions |
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| hyperloglog-0.1.8.tar.gz | 48.2 kB | Without provenance | Details for hyperloglog-0.1.8.tar.gz |
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| File | Interpreter | ABI | Platform | Actions Reset |
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| hyperloglog-0.1.8-py3-none-any.whl | Python 3 | none | any | Details for hyperloglog-0.1.8-py3-none-any.whl |
Total release size: 96.5 kB
Release files / hyperloglog-0.1.8.tar.gz
| Download URL | hyperloglog-0.1.8.tar.gz |
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| Size | 48.2 kB |
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Release files / hyperloglog-0.1.8-py3-none-any.whl
| Download URL | hyperloglog-0.1.8-py3-none-any.whl |
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| Size | 48.3 kB |
| Tags | Python 3 |
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