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JuliaMath / Interpolations.jl

Fast, continuous interpolation of discrete datasets in Julia
http://juliamath.github.io/Interpolations.jl/
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Scaled `Lanczos` interpolator throws `MethodError` regarding the `lbound()` function #592

Open gruberchr opened 4 months ago

gruberchr commented 4 months ago

If I create a ScaledInterpolation with the Lanczos interpolator as follows

using Interpolations

x = 0:0.1:1.0
A = randn(length(x))
itp = scale(interpolate(A, Lanczos()), x)

and try to interpolate, e.g. itp(0.33), a MethodError is thrown in the checkbounds() function. This error does not occur for the plain (unscaled) Lanczos interpolator.

It seems that an implementation of the function lbound() is missing for the scaled Lanczos interpolator.

mkitti commented 4 months ago

I will look into this. Thank you for the report.