Dear Prof Brian Ripley: I am very sorry for that I use the unappropriate words "It's my great pleasure" when I read this mail again! I give my apology sincerely to you ,unreservedly and with my heart! You are such a warm-hearted man.And you help me to solve my problems.But owing to my poor English, I found I had made such a foolish mistake. My brain must have been stupid at that time . I hope you can forgive my carelessness and this will not affect your work. I feel ashamed of myself.And this may be brought bad influences on my university as well as my country.I hope you won't have a bad impression on my country's students. From now on,aparting from learning R language,I will strengthen my English learning.And this will be a lesson for me. Hope you could forgive me! And I hope I can continue to learn from you.I request you can give me a chance,I will never make such a mistake ! Best wishes! I am looking forword to you reply! Huelei Kong<khl0798@163.com> Department of System Biomedical in Shanghai Jiaotong University ----- Department of System biomedical in Shanghaijiaotong University,China! -- View this message in context: http://r.789695.n4.nabble.com/My-sincere-apology-tp4691166.html Sent from the R devel mailing list archive at Nabble.com. [[alternative HTML version deleted]]