Interpolation for missing data: lininter(x, y, z, x0, y0) - File Exchange

Code covered by the BSD License

Highlights from
Interpolation for missing data

bicinter(x, y, z, x0, y0)
findnearest (x, y, z, x0, y0,...
lininter(x, y, z, x0, y0)
make_image(x, y, z)
nninter(x, y, z, x0, y0)
do_interp.m
do_interpnn.m
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from Interpolation for missing data by Prakash Manandhar
Interpolates using nearest neighbor, bilinear or bicubic formula for missing data points

lininter(x, y, z, x0, y0)

function z0 = lininter(x, y, z, x0, y0)
[xn, yn, zn] = findnearest(x, y, z, x0, y0, 4);
F = [];
for i = 1:4
    F = [F; xn(i) yn(i) xn(i)*yn(i) 1];
end
A = F\zn;
z0 = A(1)*x0 + A(2)*y0 + A(3)*x0*y0 + A(4);

Highlights from Interpolation for missing data

Highlights from
Interpolation for missing data