Write a MATLAB Mfile named ColAvg which will Accept any inp

Write a MATLAB M-file named ColAvg , which will

Accept any input matrix, and report the column averages

Returns as output the average of all the elements in the matrix.

The averages should be the same as using MATLAB built-in function mean , but do not use this function.

Hint : The code for this problem will be similar to sumonlypos.m found in your textbook on page 160.

Example

Solution

% matlab code average of matrix column and total average

function avg = ColAvg(A)
    [row, column] = size(A);
    avg = 0;
    for i = 1:column
        colavg = 0.0;
        for j = 1:row
            colavg = colavg + A(j,i);
            avg = avg + A(j,i);
        end
        colavg = colavg/row;
        fprintf(\"The average of column %d is %f\ \",i,colavg);
    end
  
    avg = avg/(row*column);
end
A = input(\"Input Matrix: \");
ans = ColAvg(A);
fprintf(\"ans = %f\ \",ans);

%{
output:

The average of column 1 is 5.3333
The average of column 2 is -3.3333
The average of column 3 is -1.6667
The average of column 4 is -5.6667
ans = -1.3333

%}