> dd
[,1] [,2]
[1,] "OP" "SU"
[2,] "XA" "YQ"
sapply( lapply(
+ strsplit(dd, split=""), sort),
+ paste, collapse="")
[1] "OP" "AX" "SU" "QY"
The result is not what I intended since it is a single line.
It should be:
[,1] [,2]
[1,] "OP" "SU"
[2,] "AX" "QY"
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