Hi Sara - I worked with SAS and Proc PHREG which is similar to LIFETEST in an analysis of root survivorship. I can also highly recommend the book by Allison that Li mentioned - I relied on it quite a lot. My paper on root survivorship has some discussion of survival analysis (see Anderson et al. 2003. New Phytologist 158: 489-501). Also, I modeled many of my analyses on work by my colleague Christina Wells (see Wells and Eissenstat. 2001. Ecology 82: 882-892).
Good luck! Laurie On Sat, Aug 15, 2009 at 7:04 PM, Sara Koropchak <[email protected]>wrote: > Greetings, > > I am working on analyzing a data set regarding survival from a sodium > tolerance test in which I ended the study before all of the plants had > died. > I have been advised to use Proc LIFETEST for my analysis, but I haven't > been able to find anyone thus far who has a lot of experience writing these > programs. > > Does anyone know how to write this program? > > Thanks, > > Sara Koropchak > -- Dr. Laurie Anderson (Laurel J. Anderson) Associate Professor Department of Botany/Microbiology Ohio Wesleyan University Delaware, OH 43015 740-368-3501
