Find index of maximum number

Hi,

May I know how to write in MATLAB to find the index of maximum number.

M = 13;
[gh_w, ph_w, d_l, pl_d] = getWindData(M, weekday);
maxIndex = max (gh_w(:,M));
H = maxIndex;

I only got the output of maximum value which is 611.5077. Thank.

Answer 1

[John D'Errico]

Read the help for max (always a good thing to read the help!)

What does it say?

[Nyan Wai Lin]

hi, yes I used to read help.

I knew that "max" give maximum value.

now it seems that i've assigned to maxIndex.

But I try to find in google.

The code use maxIndex to find the index of maximum value.

For example:

sortedValues = unique(A(:)); %# Unique sorted values

maxValues = sortedValues(end-4:end); %# Get the 5 largest values

maxIndex = ismember(A,maxValues);

[Oleg Komarov]

If you need only THE maximum, then read the help (again and paying attention to the second output).

If you need to determine the first N maximum numbers and their position, then ask the question accordingly.