I have 2D data, and want to find the interpolant that approximates the function in R. In other words, I need to apply the general function of "approxfun()", but can't find the appropriate package/function.
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What is the language/framework you use? – Pasha Dec 23 '18 at 12:21
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@Pavel As I mentioned, I use R. I know how to solve this problem for univariate function (it's the function "approxfun"), but don't know appropriate function for multivariate case. – David Dec 23 '18 at 12:23
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https://stackoverflow.com/questions/34847639/seeking-2d-version-of-approxfun – LBogaardt Nov 22 '21 at 11:51