shepard_interp_nd, a MATLAB code which defines and evaluates Shepard interpolants to multidimensional data, based on inverse distance weighting.
SHEPARD_INTERP_ND 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 GNU LGPL license.
shepard_interp_nd is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.
lagrange_interp_nd, a MATLAB 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, a MATLAB code which contains many utility routines using double precision real (r8) arithmetic.
rbf_interp_nd, a MATLAB code which defines and evaluates radial basis function (rbf) interpolants to multidimensional data.
shepard_interp_1d, a MATLAB code which defines and evaluates shepard interpolants to 1d data, which are based on inverse distance weighting.
shepard_interp_2d, a MATLAB code which defines and evaluates shepard interpolants to 2d data, which are based on inverse distance weighting.
sparse_interp_nd a MATLAB code which can be used to define a sparse interpolant to a function f(x) of a multidimensional argument.
test_interp_nd, a MATLAB code which defines test problems for interpolation of data z(x), depending on an m-dimensional argument.