interpolate 2d data in matlab

main.m
% set up some example data
x = rand(100,1)*10;
y = rand(100,1)*10;
v = sin(x).*cos(y);

% define query points on a regular grid
[X,Y] = meshgrid(0:0.25:10, 0:0.25:10);

% interpolate using griddata
Vq = griddata(x,y,v,X,Y);

% plot the original data and the interpolated data
figure;
subplot(1,2,1);
scatter(x,y,10,v,'filled');
xlabel('x'); ylabel('y'); title('Original Data');
subplot(1,2,2);
pcolor(X,Y,Vq); shading interp;
xlabel('x'); ylabel('y'); title('Interpolated Data');
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main.m
% set up some example data
x = rand(100,1)*10;
y = rand(100,1)*10;
v = sin(x).*cos(y);

% create the interpolant object using scatteredInterpolant
F = scatteredInterpolant(x, y, v);

% define query points on a regular grid
[X,Y] = meshgrid(0:0.25:10, 0:0.25:10);

% interpolate using the interpolant object
Vq = F(X,Y);

% plot the original data and the interpolated data
figure;
subplot(1,2,1);
scatter(x,y,10,v,'filled');
xlabel('x'); ylabel('y'); title('Original Data');
subplot(1,2,2);
pcolor(X,Y,Vq); shading interp;
xlabel('x'); ylabel('y'); title('Interpolated Data');
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23 lines