speed up execution of matlab code

Hello. I already make matlab code and some functions. When I execute matlab code, it took 247seconds on my laptop. The speed is very slow. I want to speed up the execution of matlab code(cpa_code_final) and some functions(cpa_calc, cpa_loc, dcpa_tcpa2). Is there anyone coding my project? My sample data is constructed the structure type of Matlab. My data description is as follows; The contents of sample data are ship’s data(date, time, latitude, longitude, course, speed) according to each ship id(MMSI). The time interval of ship’s location is 2~35 second(less than 180 second). So, that’s why ship’s data was interpolated per second. The interpolated data was changed to bigger size than the original data. I shared you my interpolated data, matlab function and powerpoint on google drive. [login to view URL] The CPA means as follows; An estimated point in which the distance between two ships. abbreviated CPA(Closest Point of Approach). The estimate is used to evaluate the risk of a collision of two ships. I shared one video recording file for explanation of CPA concept on google drive. [login to view URL] You can see that as time goes by, CPA and TCPA changed on video file. I have a matlab algorithm(function) about CPA. The algorithm was made from a journal. I attatched an algorithm function about CPA. My data is 250 ships. Example May 1st, 2014 If No.1 ship and No.2 ship in same date and time, I want to calculate DCPA, TCPA and range using my algorithm function. And then, I want to select latitude and longitude for plotting location which is risk of collision of two ships. (criterion lower than DCPA 0.15 nautical mile and lower than TCPA 3 minute). ... No.1 and No.250 should be calculated DCPA, TCPA and range. And then, I want to select latitude and longitude for plotting location which is risk of collision of two ships. No.2 and No.3 should be calculated DCPA, TCPA and range. And then, I want to select latitude and longitude for plotting location which is risk of collision of two ships. ... No.2 and No.250 should be calculated DCPA, TCPA and range. And then, I want to select latitude and longitude for plotting location which is risk of collision of two ships. ... No.249 and No.250 should be calculated DCPA, TCPA and range. And then, I want to select latitude and longitude for plotting location which is risk of collision of two ships. May 2nd, 2014 => same procedure. May 3rd, 2014 => same procedure. ... last day My purpose of this study is to find where is risk area of collision of two ships. I have big data which is bigger than 4.0GB. So, please should be considered speed for execution. Is there anyone coding my project?