On 08/17/2012 07:48 PM, Sri krishna Devarayalu Balanagu wrote:
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.
Hi Sri krishna Devarayalu Balanagu, how about this: df$RowId[which(df$x != df$y)] Jim ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
