[R] Survreg Problem

[Lumar]

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







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