Hi,
use ?unique
unique(dat)
A.K.
Hi, I wanted to remove redundant rows (with same entry in columns) in a data
frame. For example, with this data frame:
> dat<-cbind(x=c('a','a','b','b','c','c'),y=c('x','x','d','s','g','g'))
> dat
x y
[1,] "a" "x"
[2,] "a" "x"
[3,] "b" "d"
[4,] "b" "s"
[5,] "c" "g"
[6,] "c" "g"
after removing the redundancy, the end results should be
x y
[1,] "a" "x"
[2,] "b" "d"
[3,] "b" "s"
[4,] "c" "g"
what is the best way to do this?
Thanks
John
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