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2011 Mar 07
0
survest() for cph() in Design package
...ta came from Prof Bryan Langholz website where he also has the SAS code to this, so I am trying to replicate the SAS results. The data attached. Basically, the variables are: rstime: risk set age rsentry: fake entry time, just before rstime setno: risk set identifier cc: lung cancer death (0/1) cr500: independent variable 1 (0/1), cumulative radon > 500WLM smoke25: independent variable 2 (0/1), 1/2+ pack/dat at age 25 logw: weight to be used as an offset in the model rstime2: indicator variable to indicate whether age is below 50, 50-69 or >=70, used as strata in the model The SAS code...