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  1. Commons Math
  2. MATH-473

Frequency: new option: NON-sorted

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Incomplete
    • Affects Version/s: 1.0, 1.1, 1.2, 2.0, 2.1
    • Fix Version/s: None
    • Labels:
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      Description

      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.

        Attachments

        1. MATH-473.patch
          22 kB
          Dan Checkoway

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              • Assignee:
                Unassigned
                Reporter:
                dcheckoway Dan Checkoway
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