Dear R-helpers, I have a bivariate phenotype to be compared between several groups. Using 'manova' function I can get point estimates of group means. I would like to plot these estimates together with their confidence ellipses, but I do not know, how to get interval estimates of group means as well. Would you be so kind and give me a hint how to proceed? Best regards Ondrej Mikula -- Ond?ej Mikula Institute of Animal Physiology and Genetics Academy of Sciences of the Czech Republic Veveri 97, 60200 Brno, Czech Republic Institute of Vertebrate Biology Academy of Sciences of the Czech Republic Studenec 122, 67502 Konesin, Czech Republic