[R] remove repeated string in list

JS Huang js.huang at protective.com
Thu Mar 5 05:08:57 CET 2015


  Here is one for preserving the first strings.  as.numeric in the previous
posting is not necessary.

> temp
[1] "a" "b" "d" "x"

[1] "b" "c" "q" "m"

[1] "b" "f" "e" "k" "q" "h"

> sapply(1:length(temp),function(x){c <- list(); for (j in 1:x){c <-
> c(c,temp[[j]])}; temp[[x]][table(unlist(c))[temp[[x]]]==1]})
[1] "a" "b" "d" "x"

[1] "c" "q" "m"

[1] "f" "e" "k" "h"

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