Thank you so much Uwe. It seems working.
Thanks & Regards,
Arnab
Arnab Kumar Maity
Graduate Teaching Assistant
Division of Statistics
Northern Illinois University
DeKalb, IL 60115
Email: ma...@math.niu.edu
Ph: 779-777-3428
On Thu, Feb 12, 2015 at 4:02 PM, Uwe Ligges-3 [via R] <
ml-node+s789695n4703197...@n4.nabble.com> wrote:
> On 12.02.2015 16:05, arnabkm2007 wrote:
>
> > Hi,
> >
> > I am trying to run the following model for OpenBUGS and want to use
> > R2OpenBUGS package. The model specifies weibull distribution for
> censored
> > data.
> >
> >
> > weibull.model <- function()
> > {
> >
> > for(i in 1:n)
> > {
> >
> > exp.alpha[i] ~ dgamma(a.alpha, b.alpha)
> > alpha[i] <- log(exp.alpha[i])
> >
> > linear.part[i] <- alpha[i] + inprod(nu[ ], x[i, ])
> > lambda[i] <- exp(linear.part[i])
> >
> > time[i] ~ (dweib(shape, lambda[i]) C(censored.time[i], ))
> >
> > }
> >
> > shape ~ dgamma(a.shape, b.shape)
> >
> > for(j in 1:p)
> > {
> >
> > beta[j] ~ dnorm(prior.mean, prior.tau)
> > gamma[j] ~ dbern(pi[j])
> > pi[j] ~ dbeta(1, 1)
> > nu[j] <- beta[j] * gamma[j]
> >
> > }
> >
> > }
> >
> >
> >
> > But R is throwing the following error.
> >
> > Error: unexpected symbol in:
> > "
> > time[i] ~ (dweib(shape, lambda[i]) C"
> >
> > Any help regarding this will be appreciated.
>
> See ?write.model:
>
> "As a difference, BUGS syntax allows truncation specification like this:
> dnorm(...) I(...) but this is illegal in R. To overcome this
> incompatibility, use dummy operator %_% before I(...): dnorm(...) %_%
> I(...). The dummy operator %_% will be removed before the BUGS code is
> saved."
>
> Best,
> Uwe Ligges
>
>
>
>
>
> > Thanks & Regards,
> > Arnab
> >
> >
> > Arnab Kumar Maity
> > Graduate Teaching Assistant
> > Division of Statistics
> > Northern Illinois University
> > DeKalb, IL 60115
> > Email: [hidden email]
> <http:///user/SendEmail.jtp?type=node&node=4703197&i=0>
> > Ph: 779-777-3428
> >
> >
> >
> > --
> > View this message in context:
> http://r.789695.n4.nabble.com/Censoring-in-R2OpenBUGS-tp4703160.html
> > Sent from the R help mailing list archive at Nabble.com.
> >
> > ______________________________________________
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> mailing list -- To UNSUBSCRIBE and more, see
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> > PLEASE do read the posting guide
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> > and provide commented, minimal, self-contained, reproducible code.
> >
>
> ______________________________________________
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