These functions implement cubic smoothing splines and also provide some basic
computations for radial basis functions. All are called using the
For these low level FORTRAN subroutines refer to the R functions for the calling sequence and to the src subdirectory of the fields pacakage for the source code.
Cubic smoothing spline see
Finds nearest neighbor points within a fixed distance. See
Creates matrix of all polynomial terms up to fixed order. See
evaluates a univariate polynomial. See codefields.evlpoly
evaluates a multivariate polynomial. See codefields.evlpoly2
Determine which 2-d locations are within a polynomial. see
Determine which 2-d grid points locations are within a polynomial. see
Multiply an exponential cross covariance matrix by another matrix. See
Multiply an radial basis function matrix by another matrix. See
Evaluates radial basis functions. See
Robust cubic smoothing spline. See
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