One way .... seq(test1)[-which(test1==test2)]
but I imagine there are better ones ..... Peter Alspach -----Original Message----- From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of baccts Sent: Wednesday, 29 July 2015 8:26 a.m. To: r-help@r-project.org Subject: [R] indices of mismatch element in two vector with missing values How would you return the index where two vectors differs if they may contain missing (NA) values? For example: test1 <- c("1","2",NA); test2 <- c("1","2","3"); which(test1!=test2) does not return 3! Thanks in advance. -- View this message in context: http://r.789695.n4.nabble.com/indices-of-mismatch-element-in-two-vector-with-missing-values-tp4710497.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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. The contents of this e-mail are confidential and may be ...{{dropped:14}} ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
