Dear friends - I have a model with multivariate normal values AB[lev[j],1:2] ~ dmnorm(AB.hat[lev[j],],tau.AB[,]) which I need to constriant so that AB[lev[j],1] is above 0 and the other is below. I couldn't from the manual specifying "the arguments to the I(.,.) function may be specified as "blanks" or as vector-values bounds" find any help I could use (fault on my part). I tried simply adding AB[lev[j],1:2] ~ dmnorm(AB.hat[lev[j],],tau.AB[,]) I(0,10) which was declared syntactically OK, but did not compile, and I tried AB[lev[j],1:2] ~ dmnorm(AB.hat[lev[j],],tau.AB[,]) I ((0,10),(-200,0)) which was not syntactically correct So, I have been on the archives and found a single letter - but no answer - on a related issue. So I look very much forward to get some help with this simple thing. All the best Troels -- Troels Ring - - Department of nephrology - - Aalborg Hospital 9100 Aalborg, Denmark - - +45 99326629 - - [log in to unmask] ------------------------------------------------------------------- This list is for discussion of modelling issues and the BUGS software. For help with crashes and error messages, first mail [log in to unmask] To mail the BUGS list, mail to [log in to unmask] Before mailing, please check the archive at www.jiscmail.ac.uk/lists/bugs.html Please do not mail attachments to the list. To leave the BUGS list, send LEAVE BUGS to [log in to unmask] If this fails, mail [log in to unmask], NOT the whole list