Re: [R] HELP Tukey

??glht would tell you that glht is a function from the multcomp package. You need to load a package before you can use its functions. library(multcomp) ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest team Biometrie & Kwaliteitszorg / team Bio

[R] HELP Tukey

Dear all , I am trying to do a Tukey comparison, but a message appears: tuk<-glht(mod0,linfct=mcp(Soil="Tukey"));summary(tuk) Error: could not find function "glht" Anyone knows how to fix it? Thanks a lot! Xavier __ R-help@r-project.org ma