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https://issues.apache.org/jira/browse/MAHOUT-1962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15995463#comment-15995463
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ASF GitHub Bot commented on MAHOUT-1962:
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Github user rawkintrevo commented on a diff in the pull request:
https://github.com/apache/mahout/pull/300#discussion_r114629177
--- Diff:
math-scala/src/main/scala/org/apache/mahout/math/algorithms/regression/tests/FittnessTests.scala
---
@@ -47,10 +52,44 @@ object FittnessTests {
// https://en.wikipedia.org/wiki/Mean_squared_error
def MeanSquareError[R[K] <: RegressorModel[K], K](model: R[K],
residuals: DrmLike[K]): R[K] = {
+ // TODO : I think mse denom should be (row - col) ??
--- End diff --
you may be right, why do you think this?
> Add F-test to Linear Regression Fitness Tests
> ----------------------------------------------
>
> Key: MAHOUT-1962
> URL: https://issues.apache.org/jira/browse/MAHOUT-1962
> Project: Mahout
> Issue Type: Improvement
> Components: Algorithms
> Affects Versions: 0.12.0, 0.12.1, 0.13.0, 0.12.2
> Reporter: Dustin VanStee
> Priority: Minor
> Labels: beginner
> Fix For: 0.13.1
>
> Original Estimate: 96h
> Remaining Estimate: 96h
>
> This update will modify
> org.apache.mahout.math.algorithms.regression.tests.FittnessTests.scala and
> add an overall Ftest for significance of one or more parameters being not
> equal to zero.
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