How to find matrix column & row max & min output as vector?

I need to create a script that gives the maximum & minimum value of each column and each row of a vector. This is what I have so far for the overall max. The answer is supposed to display the the answer as a vector. This is my vector a=[0 7 3 -1 4; 12 14 8 9 5; -2 -3 -4 -7 -6;3 1 9 12 8]. I used the same code for overall max & min. I'm stuck on looping through the columns and giving the answer for each.

mx=a(1);
for p=2:numel(a)
   if a(p)>mx
   mx=a(p);
  end
end

mn=a(1);
for p=2:numel(A)
  if A(p)<mn
   mn=A(p);
  end
end
[mx mn]

Answer 1

[James Tursa]

For a matrix, use two indexes to separate the logic for the columns (or rows). E.g., for the column max values using a variation of what you already have:

[nr nc] = size(a); % number of rows & columns
mxc = zeros(1,nc); % initialize a max column vector
for c=1:nc % loop over the columns
    mxc(c) = a(1,c); % initial max value
    for r=2:nr
        % put code here for testing & updating the max value
    end
end

Then adjust the above for min of columns, max of rows, and min of rows.

Answer 2

[Azzi Abdelmalek]

Read the documentation http://www.mathworks.com/help/matlab/ref/min.html http://www.mathworks.com/help/matlab/ref/max.html