Does the code below solve your problem? If you have NAs in the same rows, you have to use "c" or "p" as use= parameters. Otherwise you get the error you described.
a=c(1,2,3,4,NA,6) b=c(2,4,3,5,NA,7) which(is.na(a))==which(is.na(b)) cor(a,b) ####Error cor(a,b,use="all.obs") ####Error cor(a,b,use="complete.obs") #### Does it. AND cor(a,b,use="pairwise.complete.obs") #### Does it too. ------------------------- cuncta stricte discussurus ------------------------- -----Ursprüngliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von Ken Spriggs Gesendet: Wednesday, February 27, 2008 4:34 PM An: r-help@r-project.org Betreff: [R] Error in cor.default(x1, x2) : missing observations in cov/cor Hello, I'm trying to do cor(x1,x2) and I get the following error: Error in cor.default(x1, x2) : missing observations in cov/cor A few things: 1. I've used cor() many times and have never encountered this error. 2. length(x1) = length(x2) 3. is.numeric(x1) = is.numeric(x2) = TRUE 4. which(is.na(x1)) = which(is.na(x2)) = integer(0) {the same goes for is.nan()} 5. I also try cor(x1,x2, use = "all.obs") and get the same error. What can be going wrong? -- View this message in context: http://www.nabble.com/Error-in-cor.default%28x1%2C-x2%29-%3A-missing-observa tions-in-cov-cor-tp15723848p15723848.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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. ______________________________________________ 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.
