<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>Dear Prof.</div><div><br></div><div>Thank you very much from your response. <br></div><div>Yes, dist.xvg has four column consists origin distance and distances in direction x, y , z. So distance that I want according to result of g_analyze, is 5.324286e-02 that isn't correct. I selected 2 groups, micelle and the last carbon bounded with head group for index file.</div><div>Also, I did this job for micelle and head group, and micelle with other groups but my results (distances) were all of them near the zero.</div><div>Please help me to obtain correct distance.</div><div><br></div><div>Thank you again.</div><div>Best Regards</div><div>Dina <br></div></div></body></html>