How to alter nearby values in a matrix with respect to a column?
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Hi, I have a 2D matrix A(1:100,1:100), and I replaced one of its column (A(1:100,50)) with another column vector Y(1:100,1). Now I want the nearby columns in A to vary gradually with respect to the values in Y. Is it possible to do this in matlab? Thanks.
Jan on 13 Apr 2018
A = rand(10, 10); % smaller test data
A(:, 5) = 10 * rand(10, 1);
A(:, 4) = (A(:, 5) + A(:, 4)) / 2;
A(:, 6) = (A(:, 5) + A(:, 6)) / 2;
A(:, 3) = (A(:, 5) + 2 * A(:, 3)) / 3;
A(:, 7) = (A(:, 5) + 2 * A(:, 7)) / 3;
Now the direct neighbors contain the mean between the inserted column and the original data, while the 2nd neighbors contain the weighted mean.
There is an infinite number of other ways for a gradual variation. So please explain, what you exactly need.