[R] How can we compare corresponding values of x and y (first value of x exacly matches with the first value of y)?

Rui Barradas ruipbarradas at sapo.pt
Fri Aug 17 13:12:44 CEST 2012


Hello,

I've changed the name of the data.frame, df is an R function.

DF$RowId[ DF$x != DF$y ]

Hope this helps,

Rui Barradas

Em 17-08-2012 10:48, Sri krishna Devarayalu Balanagu escreveu:
> df <- data.frame  (
>      "RowId" = 4:7,
>      "x"=c("1_1", "2_2", "3_3", "3_3"),
>       "y"=c("1_1", "3_3", "2_2", "3_3")
>                           )
>
> How can we compare corresponding values of x and y (first value of x exacly matches with the first value of y)?
> If they were not matced exactly how can we get the row id?
> In this case the row ids were 5 and 6.
>
>
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