MATLAB: Finding the array location in the matrix

findmatrixmaximum

Hi everyone,

Suppose I have a matrix:

b = [8;5;9;12]

and:

max(b) = 12 %12 is in the fourth row

I'm looking for a command line which instead of giving me the maximum value, give it to me as a row number (e.g = 4, not 12).

Can anyone help me please?

Best Answer

Hi Mohammad,

If the input is a vector, then you can do the following:

[val,idx] = max(b);

where val will be the maximum value of 12 and idx will be the index of 4. Type help max for more details. (It gets a little more complicated when the input is matrix.)

Geoff

Related Solutions

MATLAB: How to save maximum value in each iteration

You overwrite val and idx. To avoid that, replace

    [val,idx] = max(n);

    [val(i),idx(i)] = max(n);

MATLAB: Outputing a correspond element of another variable

Try this

A = ["Bayo"    "Tun"    "s"];
B = [21, 45, 11];
[~, idx] = max(B);
output = A(idx);

Result

>> output
output = 
    "Tun"

Best Answer

Related Solutions

MATLAB: How to save maximum value in each iteration

MATLAB: Outputing a correspond element of another variable

Related Question