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I have an 3 dimensional array that represents an xy grid, and the z vector represents depth. I only know depths of certain rows and am trying to interpolate the array. My questions is how do I create a 720×400 array, without setting all the values to 0 (as that could affect the interpolation).
Thanks!
It is not necessary to initialize the empty rows to a special value. Instead, you can modify the interpolation procedure to assign a zero weight to these rows. Then, they will not affect the interpolation.
A simple way to do so in MATLAB would be to use the griddata method for the interpolation.