Hello all, I have a df like this:
w <- c(1.20, 1.34, 2.34, 3.12, 2.89, 4.67, 2.43, 2.89, 1.99, 3.45, 2.01, 2.23, 1.45, 1.59) g <- rep(c("a", "b"), each=7) df <- data.frame(g, w) df # 1. Mean for each group tapply(df$w, df$g, function(x) mean(x)) # 2. Range for each group - fix value 0.15 tapply(df$w, df$g, function(x) x[(x > mean(x) - 0.15) & (x < mean(x) + ( 1 - 0.15 ))]) Now my question: How can I use different values of 0.15 for each group. As a result of a calculation I have an object "vari": > vari a b 0.41 0.08 > str(vari) num [, 1:2] 0.41 0.08 - attr(*, "dimnames")=List of 1 ..$ : chr [1:2] "a" "b So, I wanted to use 0.41 for group "a" and 0.08 for "b" instead of 0.15... Thanks for any help!! Patrick ______________________________________________ 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.