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2007 Feb 06
2
abbreviate dataframe for Sweave output
I wanted to print the first and last rows of some dataframes in Sweave
using dots in columns to separate the two parts. Head and tail almost
work, but I have problems with factors and row names.
z<-data.frame(id=letters[1:26], x=sample(1:26,26))
rbind(head(z,3), ".", tail(z,1))
id x
1 a 18
2 b 8
3 c 14
4 <NA> .
26 z 10
Warning message:
invalid