Please help me, i dont understand how to make matlab code are acceptable on matlab coder

In previously, i have code s2(i) = o_img(a,b); and that code is unacceptable in matlab coder, so i change become s2 = [s2;o_img(a,b)]; After changed, the code was accepted in matlab coder.

But, i still have some errors in line ' min_path_index(minu_count, :) = [sx sy]; '

The error from that code is same with error code s2(i) = o_img(a,b);

Answer 1

[Walter Roberson]

Do not grow arrays in MATLAB coder. Instead, initialize them to the maximum size you will ever allow. Assign values into the array, keeping track of how many you have assigned. At the end, assign the variable the portion of the variable that was actually used. In this way, the array never grows in size, only (possibly) shrinks in size at the end.

See also coder.varsize()

[Dicki Andrea]

Thanks you Robert for your question. I already follow your suggestion. I declare variable min_path_index = zeros(200,2). And the error is gone.

Is that right?

[Walter Roberson]

That looks plausible.