Benoit de Rancourt created MATH-805:
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Summary: Percentile calculation is very slow when input data are
constants
Key: MATH-805
URL: https://issues.apache.org/jira/browse/MATH-805
Project: Commons Math
Issue Type: Improvement
Affects Versions: 3.0
Reporter: Benoit de Rancourt
Priority: Minor
I use the Percentile class to calculate quantile on a big array (10^6 entries).
When I have to test the performance of my code, I notice that the calculation
of quantile is at least 100x slower when my data are constants (10^6 of the
same nomber). Maybe the Percentile calculation can be improved for this special
case.
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