oskar_hertwig created MATH-972:
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Summary: 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
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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