I have this set of data (simplified)
x = [1 2 3]
y = [3 7 2]
temp = [22 25 23; 33 25 17; 19 25 26];
each X Y coordinate pair corresponds to a column in temp. So (X,Y) = (1,3) -> [22; 33; 19]. I'm trying to setup a 2D interpolation which gives me interpolated values of temp from input XY. My solution which works, but is slow, is to create a scatteredinterpolant for every row of temp ie
int1 = scatteredinterpolant([1 2 3]', [3 7 2]', [22 25 23]')
int2 = scatteredinterpolant([1 2 3]', [3 7 2]', [33 25 17]')
int3 = scatteredinterpolant([1 2 3]', [3 7 2]', [19 25 26]')
and then using the scatteredinterpolants 3 times. My actual dataset of temp has 30000 elements per coordinate pair, so this goes pretty slow. Any suggestions?
