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:
MM
1
2
3
4
5
6
do() is designed to produce scalars (e.g. a linear model), not
vectors, so it doesn't join t
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
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