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https://issues.apache.org/jira/browse/MATH-1202?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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dmitry dementiev updated MATH-1202:
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Description:
PiecewiseBicubicSplineInterpolatingFunction is not able to interpolate if the
value we want to calculate is out of the points/values. Other libs provide
functionality to make some extrapolation.
In geospatial analysis, for example it is a must have feature, because the
locations of points and values are almost always not at the border of the shape
that we want to interpolate.
was:
PiecewiseBicubicSplineInterpolatingFunction is not able to interpolate in out
of the range values. Other libs provide functionality to make extrapolation.
In geospatial analysis, for example it's must have feature, because the
locations of points and values are almost always not at the border of the shape
that we want to interpolate.
> PiecewiseBicubicSplineInterpolatingFunction - allow to extrapolate
> ------------------------------------------------------------------
>
> Key: MATH-1202
> URL: https://issues.apache.org/jira/browse/MATH-1202
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 3.4.1
> Reporter: dmitry dementiev
> Labels: interpolation
>
> PiecewiseBicubicSplineInterpolatingFunction is not able to interpolate if the
> value we want to calculate is out of the points/values. Other libs provide
> functionality to make some extrapolation.
> In geospatial analysis, for example it is a must have feature, because the
> locations of points and values are almost always not at the border of the
> shape that we want to interpolate.
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