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POAutomation of WinBUGS from R
 

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    <p>I have a question related to the R Code which calls BUGS. I have run the model in WinBUGS and it runs fine giving me the expected results. Below is the automation code used when I had single outcome or univariate data for Y’s. Now I want to use it for multiple outcomes. I tried a different way of reading the data. There are 2 simulations for testing which are read from csv files.Not sure where to specify in the code so that the same process can be repeated for 2 outcomes instead of one. setwd("C://Tina/USB_Backup_042213/Testing/CSV")</p> <pre><code> matrix=NULL csvs &lt;- paste("MVN", 1:2, ".csv", sep="") for(i in 1:length(csvs)){ matrix[[i]] &lt;- read.csv(file=csvs[i], header=T) print(matrix[[i]]) } Y1 Y2 1 11 6 2 8 5 3 25 13 4 1 13 5 8 22 Y1 Y2 1 9 1 2 7 9 3 25 13 4 1 18 5 9 12 library("R2WinBUGS") bugs.output &lt;- list() for(sim in 1:2){ Y &lt;-(matrix[[sim]]) bugs.output[sim] &lt;- bugs( data=list(Y=as.matrix(Y), Nf=5, n=60, mn=c(-1.59, -2.44), prec=matrix(c(.0001,0,0,.0001),nrow=2,ncol=2), R=matrix(c(.001,0,0,.001),nrow=2,ncol=2)), inits=list(list(gamma=c(0,0), T=matrix(c(0.9,0,0,0.9),nrow=2,ncol=2))), model.file="M-LN_model_trial.txt", parameters.to.save = c("p","rho","sigma2"), n.chains=1, n.iter=12000, n.burnin=5000, debug=TRUE, bugs.directory="C://Tina/USB_Backup_042213/winbugs14/WinBUGS14", working.directory=NULL) } </code></pre> <p>Warning messages: 1: In bugs.output[sim] &lt;- bugs(data = list(Y = as.matrix(Y), Nf = 5, : number of items to replace is not a multiple of replacement length 2: In bugs.output[sim] &lt;- bugs(data = list(Y = as.matrix(Y), Nf = 5, : number of items to replace is not a multiple of replacement length</p>
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    1. COit's not officially forbidden, but please reconsider cross-posting to SO and r-help http://article.gmane.org/gmane.comp.lang.r.general/300245 ... it wastes effort.
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    2. COcan we see the BUGS model? i imagine that it will need to be set up to handle multivariate data (and this is most likely where your problem is).
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    3. CO@ Ben Bolker, Will reconsider next time. I wasnt sure if the listservs and stackexchange have the same audience.
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