Maximum profits indicator

Here it is: the Matlab code for "ais" indicator, as I've commented in a previous post.

function [long short] = ais(HLOC, timeframe, pips)
%
% ais
%
%       [long short] = ais(HLOC, timeframe, pips)
%
% Indicator of maximum profit for each moment open a position in just 
% this moment
%
% Parameters:
%       HLOC, matrix with High,Low,Open,Close prices values in columns.
%       timeframe, size of the window to before closing the position
%       pips, spread between opening and closing position
%
% Output:
%       
%
    [p1 p2] = size(HLOC);

    long = [];
    short = [];
    for ii=1:p1-timeframe
        % Long positions
        profit = -inf;
        for jj=ii+1:ii+timeframe
            profit2 = (HLOC(jj,1) - HLOC(ii,3)-pips)/HLOC(ii,3);
            if profit2 > profit
                profit = profit2;
            end
        end
        long = [long 
                profit];

        % Short positions
        profit = -inf;
        for jj=ii+1:ii+timeframe
            profit2 = (HLOC(jj,3) - HLOC(ii,2)-pips)/HLOC(ii,3);
            if profit2 > profit
                profit = profit2;
            end
        end
        short = [short 
                 profit];
    end