MATLAB: Subtract two data points in a cell array

Question

Hi. I have a cell array Sa (338 X 1929). I want to subtract two points (which are numbers). For example: Sa(i,2)-Sa(i-1,2). Matlab doesn't do that as they are cell array type. Is there any way to do this?

Answer 1

You are trying to subtract the cells, rather than the contents of the cells. Try

Sa{i,2}-Sa{i-1,2}