Re: [R] dplyr: producing a good old data frame

Hi John, Just printing the result gives a good indication where the problem lies: frm %% rowwise() %% do(MM=max(as.numeric(.))) Source: local data frame [6 x 1] Groups: by row MM 1 dbl[1] 2 dbl[1] 3 dbl[1] 4 dbl[1] 5 dbl[1] 6 dbl[1] do() is designed to produce scalars (e.g. a linear

[R] dplyr: producing a good old data frame

I'm using the dplyr package to perform one-row-at-a-time processing of a data frame: rnd6 = function() sample(1:300, 6) frm = data.frame(AA=rnd6(), BB=rnd6(), CC=rnd6()) frm AA BB CC 1 123 50 45 2 12 30 231 3 127 147 100 4 133 32 129 5 66 235 71 6 38 264 261 The interface is