MATLAB: How could you find the index number of an answer output

derivativeiiindex

I have a code that looks like:
for ii=2:length(dep);
    dz(ii) = dep(ii)-dep(ii-1);
    drho(ii) = sigth(ii)-sigth(ii-1);    
end
for ii=1:length(dz);
      drhodz(ii) = drho(ii)/dz(ii);  
  end
max(drhodz)
Is there a way to go back and then see which ii this maximum answer corresponds to? (Does that question make sense? After finding the maximum drhodz I'm trying to work backwards to see at which dz (change in depth) this max occurs.)

Best Answer

[max_value, max_idx] = max(drhodz)
The index ii corresponding to the maximum value max_value is given by max_idx.
HTH,
Arnaud
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