Hello, since I installed the package VGAM I have problems useing the predict for othere methods. for example I have a model from glm and polr the command predict(model) I get the error: unable to find an inherited method for function "predict", for signature "polr". Has perhaps anybody a solution, because Iwould need vglm and also other methods like tree in a loop. Thanks a lot Vinzent -- NUR NOCH BIS 31.01.! GMX FreeDSL - Telefonanschluss + DSL f?r nur 16,37 EURO/mtl.!* http://dsl.gmx.de/?ac=OM.AD.PD003K11308T4569a