How to use a for loop to add an array and matrix together?

I am currently using a for loop to populate a pre-allocated matrix of M rows, N columns, assigned to the variable SLSCMatrix.

 SLSCMatrix(1,1) = InitialSLS; 
                % Populates row 1 with the positive integer from InitialSLS
for i = 2:m;
                %calculations from row 2 onwards are completed m number of
                %times, as deteremined by the function size(Xsection). This
                %allows the user to change dimensions easily.

    SLSCMatrix(i,:)=SLSCMatrix(i-1,:)+SLSCRise;
end

SLSCRise is 1,1 array that contains a single positive integer (user defined). This code works well and populates the matrix no matter the size. I have changed the 1,1 vector to a X,1 array with different values in each cell and would like to sequentially add each new value in a similar way to the above code.

So essentially using Pseudo-code it would do this:

Add SLSVRise[1,1] to SLSMatrix[1,1] 
                      = SLSMatrix[2,1]
  Add SLSVRise [2,1] to SLSMatrix[2,1]
                      = SLSMatrix[3,1]
        Add SLSVRise [3,1] to SLSMatrix[3,1]

This continues until SLSMatrix[M,1] is full then progresses onto the next column of SLSMatrix

Add SLSVRise[1,1] to SLSMatrix[1,2]
                        = SLSMatrix [2,2]
        Add SLSVRise[2,1] to SLSMatrix[2,2]
                        = SLSMatrix[2,3]

This continues until SLSMatrix is filled. Would a nested for-loop be the best way to do this? What code should I add to the above for loop to make it work with an array rather than a single vector?

Answer 1

[Prannay Jain]

Below two for loops should work for your case. Fill SLSCMatrix column wise as SLSVRise is a column matrix.

 for j=1:N
     for i=2:M
        SLSCMatrix(i,j) = SLSCMatrix(i-1,j) + SLSVRise(i-1,1)
     end
 end