R-list, Suppose I have
oldfmla <- y ~ x I would like to update it to y ~ x + z which I know I can get using newfmla <- update(oldfmla, ~ . + z) However, what if I have fmlatmp <- ~ z Can I combine oldfmla and fmlatmp to get y ~ x + z some how? Clearly, newfmla <- update(oldfmla, ~ . + fmlatmp) will not work. Thanks in advance, Danny ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
