help with max function

[Max,index]=max(array,[ ],2)..... Iam using this syntax to find the maximum value of every column but in case of two equal maximum values it returns the first one... how can I solve this?! Thanks

[Walter Roberson]

You have not defined what outcome you would prefer.

[Steven Lord]

That sounds like it's working as it should. From the documentation "If the largest element occurs more than once, then I contains the index to the first occurrence of the value."

What did you expect it to do instead?

[Marco Nashaat]

sorry for your trouble....but the problem I'm working on is to find the saddle points of a matrix and now I'm trying this ...

[row,col]=size(matrix);
  for I=1:row
  for j=1:col
  if matrix (I,j)==max(matrix, I)&&matrix (I,j)==min(matrix, j)
  indices=[i j;]:
  else
  indices=[ ]
  end
  end
  end
would it work ...and I could use some help with the syntax!!

[Mohymen Kushal]

if A is a matrix, then max(A,[ ],2) is a column vector containing the maximum value of each row . What is this '2' for ? can anybody explain please. Thanks.

[the cyclist]

As clearly stated in the documentation for max, that "2" indicates the matrix dimension along which to take the maximum.

Answer 1

[the cyclist]

This code will return the row and column indices where the entry is equal to the column's maximum.

[rowIdx,colIdx] = find(A==max(A))