search for: tp24880908p25373059

Displaying 1 result from an estimated 1 matches for "tp24880908p25373059".

2009 Aug 08
2
Problem using model.frame with argument subset in own function
Dear List, I am writing a formula method for a function in a package I maintain. I want the method to return a data.frame that potentially only contains some of the variables in 'data', as specified by the formula. The problem I am having is in writing the function and wrapping it around model.frame. Consider the following data frame: dat <- data.frame(A = runif(10), B = runif(10), C