Changing values of martix in particular column

Hi, I have a matrix of 366 rows and 35 columns. I would like to change values in 35th column (for every row) in this following way: if it equals 1 leave like it is, if there is any other value - change to 0. I was thinking about using for loop, but I'm very begginer in programming and wasn't able to write a good code.

Answer 1

[Star Strider]

Try this:

M = randi(9, 366, 35);                                  % Create Matrix
Original = M(1:10,35);                                  % Temporary, Delete Later
newM = M;                                               % New Version Of ‘M’
newM(:,35) = M(:,35) == 1;                              % Change Column #35
Result = [Original, newM(1:10,35)]                      % Desired Result

producing (for example in this run):

Result =
     3     0
     2     0
     5     0
     1     1
     7     0
     9     0
     5     0
     4     0
     1     1
     5     0

The ‘Result’ matrix is simply to display the original (first column) and the transformed version (second colukmn). The other columns are unchanged.