Dear all, How can I plot the number of observations per box in a boxplot. Many thanks, Bernard --------------------------------- [[alternative HTML version deleted]]
Dear all, How can I plot the number of observations per box in a boxplot. Many thanks, Bernard --------------------------------- [[alternative HTML version deleted]]
On 1/30/2008 6:42 AM, Marc Bernard wrote:> Dear all, > > How can I plot the number of observations per box in a boxplot. Many thanks, > > BernardSomething like this? X <- boxplot(count ~ spray, data = InsectSprays, col = "lightgray") mtext(side=1, line = 2, at = 1:nlevels(InsectSprays$spray), paste("n=", X$n, sep=""))> --------------------------------- > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at 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.-- Chuck Cleland, Ph.D. NDRI, Inc. 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 512-0171 (M, W, F) fax: (917) 438-0894
Do you mean something like y<-rnorm(50) x<-factor(sample(letters[1:5],50,replace=T)) boxplot(y~x) text(1:5,rep(min(y),5),paste("n=",tapply(y,x,length)) ) ? (You can fiddle about with the text placement easily enough). Also note that boxplot's varwidth parameter provides a graphical indication of group size; boxplot(y~x, varwidth=T)>>> Marc Bernard <bernarduse1 at yahoo.fr> 30/01/2008 11:43:15 >>>Dear all, How can I plot the number of observations per box in a boxplot. Many thanks, Bernard --------------------------------- [[alternative HTML version deleted]] ______________________________________________ R-help at 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. ******************************************************************* This email and any attachments are confidential. Any use...{{dropped:8}}
Try this also: y<-rnorm(50) x<-factor(sample(letters[1:5],50,replace=T)) bp <- boxplot(y~x) text(1:5, bp$stats[3,]+.1, paste("n", bp$n, sep="=")) On 30/01/2008, Marc Bernard <bernarduse1 at yahoo.fr> wrote:> Dear all, > > How can I plot the number of observations per box in a boxplot. Many thanks, > > Bernard > > > > > --------------------------------- > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at 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. >-- Henrique Dallazuanna Curitiba-Paran?-Brasil 25? 25' 40" S 49? 16' 22" O