Let's say your "data" has 2 columns: one is "date" and another is "price", then
avg = mean(data$price, na.rm=T) std = sd(data$price, na.rm=T) The data after those unwanted removed should be: data[data$price-avg<=3*std,] ----- A R learner. -- View this message in context: http://r.789695.n4.nabble.com/Using-which-function-with-xts-tp2288886p2289163.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.
