commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Phil Steitz (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MATH-473) Frequency: new option: NON-sorted
Date Sat, 24 Dec 2011 05:44:31 GMT

     [ https://issues.apache.org/jira/browse/MATH-473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phil Steitz updated MATH-473:
-----------------------------

    Assignee:     (was: Phil Steitz)
    
> Frequency: new option: NON-sorted
> ---------------------------------
>
>                 Key: MATH-473
>                 URL: https://issues.apache.org/jira/browse/MATH-473
>             Project: Commons Math
>          Issue Type: Improvement
>    Affects Versions: 1.0, 1.1, 1.2, 2.0, 2.1
>            Reporter: Dan Checkoway
>             Fix For: 3.0
>
>         Attachments: MATH-473.patch
>
>
> 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.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message