different COMRES statements

Dear NMuser, I have a problem with implementing the CWRES in a model that's using $PRIOR. Both need a $ABB COMRES= x statement, but with different numbers of x. Which number should I take here? NONMEM seems to have no problem when using the one from CWRES, but the CWRES cannot be calculated anymore in R using Xpose. The following message appears: > cwres <- compute.cwres(1, printToOutFile = FALSE,onlyNonZero = FALSE) Error in `[.data.frame`(x, r, vars, drop = drop) : undefined columns selected When I use the COMRES number from the $PRIOR NMTRAN gives an error regarding the table with the wrong number of COM ARRAY . I hope someone have seen this problem before and can tell me more about the COMRES statement. Thank you in advance and best regards, Frederik Gorter de Vries _______________________________________ Frederik Gorter de Vries LACDR / Pharmacology Gorleaus Laboratories Einsteinweg 55 2333 CC Leiden The Netherlands Tel : ++31 71 527 6142 Email: [EMAIL PROTECTED]