How to add a mean line in the boxplot keeping the median line ? For example in this: set.seed(1) a <- rnorm(10) b <- rnorm(10) boxplot(a, b) [[alternative HTML version deleted]]
To prevent confusion you might want to use a red dot rather than a line: points(1:2, c(mean(a), mean(b)), col = "red") and perhaps label it since its non-standard: text(1:2, c(mean(a), mean(b)), "Mean", pos = 4) On 9/26/06, laba diena <juscio at gmail.com> wrote:> How to add a mean line in the boxplot keeping the median line ? > For example in this: > > > set.seed(1) > > a <- rnorm(10) > > b <- rnorm(10) > > boxplot(a, b) > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at stat.math.ethz.ch 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. >
How to add a mean *line* in the boxplot keeping the median line ? Maybe it is possible to do using the *segments* function ? For example in this: set.seed(1) a <- rnorm(10) b <- rnorm(10) boxplot(a, b) [[alternative HTML version deleted]]
And if you really do want a line segment try this: M <- c(mean(a), mean(b)) segments(1:2-0.4, M, 1:2+0.4, M, col = "red") On 9/26/06, Gabor Grothendieck <ggrothendieck at gmail.com> wrote:> To prevent confusion you might want to use a red dot rather than > a line: > > points(1:2, c(mean(a), mean(b)), col = "red") > > and perhaps label it since its non-standard: > > text(1:2, c(mean(a), mean(b)), "Mean", pos = 4) > > On 9/26/06, laba diena <juscio at gmail.com> wrote: > > How to add a mean line in the boxplot keeping the median line ? > > For example in this: > > > > > > set.seed(1) > > > > a <- rnorm(10) > > > > b <- rnorm(10) > > > > boxplot(a, b) > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help at stat.math.ethz.ch 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. > > >