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.