MATLAB: How to get the sum of rows and columns of a table and add them to the table

MATLABtable

I want to get the totals of each row and column from a table with values inserted by a user
This is my script so far:
row = input('Enter number of rows: ');
col = input('Enter number of columns: ');
for i = 1:row
  for j = 1:col
    str = ['Enter element in row ' num2str(i) ', col ' num2str(j) ': '];
    A(i,j) = input(str);
  end
end
A;
See the images for how I want it to look compared to how it looks now

Best Answer

After you get the row and col values from the user, pre-allocate it by,
 A = zeros(row+1,col+1);
I say "+1" because that'S where I want to store the sum. Now get the values from user as in the for loop, then to caluclate sum of all rows,
 A(end,1:col) = sum(A(1:row,1:col),1); %last element will be 0
to sum all columns
 A(1:row,end) = sum(A(1:row,1:col),2); %again, last element will be 0
final result will be like, (for a 3x3 input)
    0.8673    0.8289    0.2804    1.9766
    0.7212    0.7730    0.7949    2.2891
    0.1438    0.3716    0.2151    0.7304
    1.7322    1.9735    1.2904         0
Related Question