[
https://issues.apache.org/jira/browse/ACCUMULO-2494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13945390#comment-13945390
]
ASF subversion and git services commented on ACCUMULO-2494:
-----------------------------------------------------------
Commit 0dc92ca1288f521cbbeeb8bbd266fa922c845d90 in accumulo's branch
refs/heads/master from [[email protected]]
[ https://git-wip-us.apache.org/repos/asf?p=accumulo.git;h=0dc92ca ]
ACCUMULO-2494 Delegate math to commons-math
> Stat calculation of STDEV may be inaccurate
> -------------------------------------------
>
> Key: ACCUMULO-2494
> URL: https://issues.apache.org/jira/browse/ACCUMULO-2494
> Project: Accumulo
> Issue Type: Bug
> Components: client
> Reporter: Mike Drob
>
> The math is sound, but it is susceptible to rounding errors. We should
> address that.
> See http://www.strchr.com/standard_deviation_in_one_pass and
> http://www.cs.berkeley.edu/~mhoemmen/cs194/Tutorials/variance.pdf
--
This message was sent by Atlassian JIRA
(v6.2#6252)
