Frequency: new option: NON-sorted
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Key: MATH-473
URL: https://issues.apache.org/jira/browse/MATH-473
Project: Commons Math
Issue Type: Improvement
Reporter: Dan Checkoway
I have a request for enhancement on org.apache.commons.math.stat.Frequency. I
would like to be able to specify that the the backing map NOT be sorted. Right
now it uses TreeMap. I would like to have the option of specifying that
sorting is not important, and would in fact hinder performance, and a plain old
HashMap should be used instead.
i.e. constructor such as:
public Frequency(boolean sorted);
If sorted is true, use a TreeMap. If sorted is false, use a HashMap. Is this
feasible? I'd be happy to contribute a patch if that would help.
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