Dear R users,
 
I've found bugs.R : the functions for running WinBUGs from R that is
writen by Dr. Andrew Gelman who is a professor from Columbia University.
The bugs.R would be very useful for me,  and I think many of you know it
as well. I followed the instuctions on Dr. Gelman's web to install all
of documents that bugs.R needs, but when I try to run the school example
the web posted in R, I got an error. 
 
Would you please help me out? I am stuck on this for a while and really
frustrated now.
 
The program and the error as follow.
 
Thanks a lot in advance!
 
Jiaa
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> # R code for entering the data and fitting the Bugs model for 8
schools
> # analysis from Section 5.5 of "Bayesian Data Analysis".
> 
> # To run, the Bugs model must be in the file "schools.txt" in your
working
> # directory and you must load in the functions in the bugs.R file (see
> # http://www.stat.columbia.edu/~gelman/bugsR/).
> 
> J <- 8
> y <- c(28,8,-3,7,-1,1,18,12)
> sigma.y <- c(15,10,16,11,9,11,10,18)
> schools.data <- list ("J", "y", "sigma.y")
> schools.inits <- function()
+   list (theta=rnorm(J,0,1), mu.theta=rnorm(1,0,100),
+         sigma.theta=runif(1,0,100))
> schools.parameters <- c("theta", "mu.theta", "sigma.theta")
> 
> #run in winbugs14
> 
> schools.sim <- bugs (schools.data, schools.inits, schools.parameters,
"schools.bug", n.chains=3, n.iter=1000, version=1.4)
Error: couldn't find function "bugs"
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