how to assign our output in an empty matrix

M working on a matrix of size 5X8 lets say its iimat. On this matrix I am applying one algorithm on each row of matrix iimat and get the ouput in rrow .I have defined mmat=[] as an empty matrix and here I have to assign each rows output in mmat. How to assign each rrow which is output of each iimat row to mmat.At the end mmat size will be 5X8 same as that of iimat

Answer 1

[Walter Roberson]

for K = 1 : size(iimat,1)
   one_row = iimat(K,:);
   processed_row = sin(one_row);   %for example
   mmat(K,:) = processed_row;
end