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https://issues.apache.org/jira/browse/MATH-972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13649770#comment-13649770
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Gilles commented on MATH-972:
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Could you please upload a unit test showing the problem?
> LinearInterpolator Misconception
> --------------------------------
>
> Key: MATH-972
> URL: https://issues.apache.org/jira/browse/MATH-972
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 3.2
> Environment: All
> Reporter: oskar_hertwig
> Priority: Trivial
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> The method interpolate() of the class LinearInterpolator return a
> polynomialSplineFunction althought a piecewiseContinuousFunction have to be
> returned.
> This cause a bug. Indeed when the interpolated serie is localy constant the
> linear interpolation should lead to constant value between this points. This
> is not possible when the returned object is a PolynomialSplineFunction
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