Dear Sir/Madam, I am pleased to seek for your help or guidance to enable me to fix this problem (see attached?image) with my R for MacOS. I follow all the instructions there in the R for Mac OS X help but I couldn't fix this displayed problem. I wanted to use the R for differential gene expression analysis. Thanks in anticipation for your kind help and proper guidance to fix this issue. Pleasant weekend? Umar.?*UMAR AHMAD?BSc (Hons), M.S(UPM)?Ph.D. Research Fellow?Medical Genetics Laboratory (MGL)Genetics and Regenerative Medicine Research Centre (GRMRC)Level 6, Laboratory Block BFaculty of Medicine & Health Sciences,?Universiti?Putra?Malaysia (UPM)43400 UPM?Serdang, Selangor, Malaysia.T?+601-28959092???E?uahmad at basug.edu.ngThis email may contain confidential information, which also may be legally privileged. Only the intended recipient(s) may access, use, distribute or copy this e-mail. If this e-mail is received in error, please inform the sender by return e-mail and delete the original. If there are doubts about the validity of this message, please contact the sender by telephone. It is the recipient's responsibility to check the e-mail and any attached files for viruses. -------------- next part -------------- A non-text attachment was scrubbed... Name: Screen Shot 2016-11-20 at 2.16.11 AM.png Type: image/png Size: 138976 bytes Desc: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20161119/a9501733/attachment.png>