Dear Benjamin This solved the problem.
On 03/20/2015 04:06 PM, Benjamin Hofner wrote: > First, mboost expects the offset to be a scalar or a vector with length > equal to the number of observations. > (i.e., x'beta) ok, I could not figure out how to get the correct link vector from the polr. Using glmboost is certainly a good idea. > Second, there was a bug in mboost. Thanks for fixing! > install.packages("mboost", repos="http://R-Forge.R-project.org") The changes were somehow not included in the newest build. I downloaded the function from the SCM Repository directly. It works fine now. Thank you for your help! Madlene ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.