Phil Steitz created MATH-877:
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Summary: Allow catagory data to be provided as SummaryStatistics
in OneWayAnova
Key: MATH-877
URL: https://issues.apache.org/jira/browse/MATH-877
Project: Commons Math
Issue Type: Improvement
Affects Versions: 3.0
Reporter: Phil Steitz
Fix For: 3.2
>From a post on 9 Oct, 2012 to [email protected] from Peter Andrews
{quote}
I have implemented a version of OneWayAnova which uses SummaryStatistics rather
than requiring the array of doubles.
I know that there is a whole process for submitting code but I am under a
deadline so sending this email with the code is all I am going to do.
A couple of notes:
I would have maintained the same signature structure simply adding methods
that supported Collection<SummaryStatistics> but that creates an error because
it has the same Signature due to type erasure on Collection<double[]>.
I did not see why certain cases such as having only one array or number of
elements < 2 should necessarily throw exceptions -- the math still works out
and gives reasonable results so given point #1, I differentiated the function
signatures by adding a boolean to optionally skip the checks and therefore not
not throw DimensionMismatchException.
Minor note: I understand that you cannot change it at this point but there is
no reason for this class not to abstract with static methods since it has no
state.
Do with this what you will.
Thanks for the wonderful tools you provide.
Peter Andrews
{quote}
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