Dear all,
I have a problem which I have stucked for a while and I didn't find any
solution. Would you please take your time and see if you could help me for the
following R code.
I am using Survival analysis to fit the distribution to my data. My data ranges
changes from smaller than 0 to a very big number like (yearly average mileage
). When I add data which are very big in range I receive following error. First
I taught by normalizing data it would be solved but it didn't.
If anyone has any experience about what would be the reason for error or how I
can solve it ? I really appreciate your support and help.
f<- Surv(time, status) ~ covariates (there are 56)
weibul <- flexsurvreg(f ,dist='weibull' ,data=Data)
Error in optim(method = "BFGS", par = c(0.566003631595269, 0, 0, 0, 0, :
initial value in 'vmmin' is not finite
Med V�nliga H�lsningar
Best Regards,
Farzaneh Ahmadzadeh, PhD. IE.
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