shepard_interp_nd, an Octave code which defines and evaluates Shepard interpolants to multidimensional data, based on inverse distance weighting.
The code needs the R8LIB library. The test needs the TEST_INTERP_ND library.
The computer code and data files described and made available on this web page are distributed under the MIT license
shepard_interp_nd is available in a C version and a C++ version and a Fortran90 version and a MATLAB version and an Octave version.
lagrange_interp_nd, an Octave code which defines and evaluates the Lagrange polynomial p(x) which interpolates a set of data depending on a multidimensional argument x that was evaluated on a product grid, so that p(x(i)) = z(i).
r8lib, an Octave code which contains many utility routines using double precision real (r8) arithmetic.
rbf_interp_nd, an Octave code which defines and evaluates radial basis function (RBF) interpolants to multidimensional data.
shepard_interp_1d, an Octave code which defines and evaluates Shepard interpolants to 1d data, which are based on inverse distance weighting.
shepard_interp_2d, an Octave code which defines and evaluates Shepard interpolants to 2d data, which are based on inverse distance weighting.
sparse_interp_nd an Octave code which can be used to define a sparse interpolant to a function f(x) of a multidimensional argument.
test_interp_nd, an Octave code which defines test problems for interpolation of data z(x), depending on an m-dimensional argument.