Hi Frank, The problem is you can't lump together multiple S3 methods. Instead of: > S3method(latex, anova.rms, bj, cph, Glm, Gls, lrm, naprint.delete, ols, > pphsm, psm, rms, Rq, summary.rms, validate) You need S3method(latex, anova.rms) S3method(latex, bj) S3method(latex, cph) etc. Hadley -- Chief Scientist, RStudio http://had.co.nz/