Li, Jia wrote:
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!
Why do you post twice? See my former message, you forgot to source() "bugs.R".
BTW: Since this code is from the website from Andrew Gelman, why do you think posting to R-help is the appropriate way to get help? R has a standardized mechanism for distributing code - called "package".
And the appropriate package "R2WinBUGS" you are looking for has been made available - thanks to Andrew's effort in writing the original code and thanks to the efforts of two others to generalize the code and package it for you.
Uwe Ligges
Jiaa ________________________________________________________________________ _
# 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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