When you put (fo) what do you mean? With ordered variable am now getting this error message:
model1 <- siarmcmcdirichletv4(data, source, tef, concdep=0, 500000, 50000) Error in matrix(1, ncol = (numsources + numiso) * numgroups, nrow = (siardata$iterations - : invalid 'ncol' value (too large or NA) In addition: Warning message: In Ops.ordered((numsources + numiso), numgroups) : '*' is not meaningful for ordered factors Should I now change to numeric? How do I do this (example code if possible please, am beginner and struggling!)? Thanks again for your help. Alex. -- View this message in context: http://r.789695.n4.nabble.com/Error-in-Summary-factor-c-1L-1L-1L-1L-1L-1L-1L-1L-1L-1L-4L-max-not-meaningful-for-factors-tp4022502p4024505.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.