Re: [R] find difference between data frames

I'm not sure if you mean to ignore row 6 while ignoring row 4 or not so here are two solutions (depending on what you meant) dput(x) # dput is your friend structure(list(kind = c(1L, 1L, 1L, 1L, 2L, 2L), x = c(8L, 44L, 25L, 36L, 2L, 36L), y = c(9L, 3L, 7L, 20L, 14L, 20L)), .Names = c("kind", "x",

[R] find difference between data frames

I have one data frame, like below： kindxy 11 8 9 21443 31257 41 36 20 52 2 14 62 36 20 so, I want to find unique coordinates in kind