[R] scale Problem in Survreg function
Dear R-Community, I'm writting my diploma-thesis this days. Therefore I have to estimate a few coefficients with a Survreg function (library=Survival). My Problem is that the estimated coefficients doesn't make sense. *My Questions:* - What role plays the scale-Value for the coefficient-estimation? - How can I interpret a scale-value like 3 or 12? - Why estimates R for some scales an Intercept and for some not? - Is it usual that the estimations differs so much (factor 1) for different scale-Values? Thank you in Advance! :-) Best wishes, Stefan -- View this message in context: http://r.789695.n4.nabble.com/scale-Problem-in-Survreg-function-tp4653619.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Survreg Problem
Hello community, I have a problem with my survreg function in R-Statistics. My created code is the following: library(survival) surv=Surv(IPT_IN_DAYS,Status) survival.data.weibull=survreg(surv~AGE_DAYS+KM_COUNT+LL_PER_DAY+IPT_HIS+IPT_SDEV, data=spss, dist="weibull", scale=2.0) summary(survival.data.weibull) When I run that code following message shows up: In survreg.fit(X, Y, weights, offset, init = init, controlvals = control, : Ran out of iterations and did not converge What can I do to solve this problem? Thank you in advance. Regards, Stefan -- View this message in context: http://r.789695.n4.nabble.com/Survreg-Problem-tp4651271.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
