[R] survreg and predict probability of failure

[David Winsemius]

Perhaps:

G10 <- predict(wei, list(Group =10 , UsefulLife =10), type="response")

You should get a single km-type object and will need to extract a time-specific value.

(You really _should_ post what you have tried.)

-- 
David
Sent from my iPhone


Sent from my iPhone

> On Mar 14, 2014, at 9:11 PM, shilpi harpavat <tshilpi at hotmail.com> wrote:
> 
> Hi,
> I am fitting a weibull model as follows 
> my models is
> 
> s <- Surv(DFBR$Time,DFBR$Censor)
> 
> wei <- survreg(s~Group+UsefulLife,data = DFBR,dist="weibull")
> 
> 
> 
> How can i predict the probabilty of failure in next 10 days, for a new data with group =10 and usefuleLife =100 
> Thx
> shilpi                           
>    [[alternative HTML version deleted]]
> 
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