Hi, I am working with a set of data and i need all of them to be the same length. how can i do this?
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It depends. As said already you can crop the longer ones, pad the shorter ones or apply an interpolation. For the latter there are linear, cubic, spline, bsline, trigonometric and more complicated interpolation methods.
S1 = size(FirstMatrix); S2 = size(SecondMatrix); MaxS = max(S1, S2);
if MaxS(1) > S1(1); FirstMatrix(end+1:MaxS(1), :) = 0; end if MaxS(2) > S1(2); FirstMatrix(:, end+1:MaxS(2)) = 0; end
if MaxS(1) > S2(1); SecondMatrix(end+1:MaxS(1), :) = 0; end if MaxS(2) > S2(2); SecondMatrix(:, end+1:MaxS(2)) = 0; end
You can simplify this a bit if you are using vectors and you know the orientation of the vectors.