Dear Bob, Thanks for your answer! I didn't think factors would be a problem for plot() Ivan
Le 4/26/2011 12:21, Bob O'Hara a écrit :
On 26 April 2011 12:08, Ivan Calandra <ivan.calan...@uni-hamburg.de <mailto:ivan.calan...@uni-hamburg.de>> wrote:Dear users, I'm trying to get a dot plot but always end up with a boxplot. Can someone please tell me what I am doing wrong? df <- structure(list(FACETTE = structure(c(1L, 1L, 1L, 1L, 2L, 2L, + 2L, 2L), .Label = c("base", "tip"), class = "factor"), Sq = c(274836, + 0.74182, 0.709205, 0.984552, 279869, 255712, 26566, 301464)), .Names = c("FACETTE", + "Sq"), class = "data.frame", row.names = c(1L, 2L, 3L, 4L, 6L, + 7L, 8L, 9L)) with(df, plot(Sq~FACETTE, type="p")) with(df, plot(Sq~FACETTE, type="n")) I get boxplots in both cases. What should I do to get points instead of boxes? Don't use a factor? with(df, plot(Sq~as.numeric(FACETTE), type="p"))works, but you then need to play a bit with the x axis to get the labels etc. right:with(df, plot(Sq~as.numeric(FACETTE), type="p", xaxt="n")) axis(1, c("base", "tip"), at=c(1,2)) Bob -- Bob O'Hara Biodiversity and Climate Research Centre Senckenberganlage 25 D-60325 Frankfurt am Main, Germany Tel: +49 69 798 40216 Mobile: +49 1515 888 5440 WWW: http://www.bik-f.de/root/index.php?page_id=219 Blog: http://blogs.nature.com/bobohJournal of Negative Results - EEB: www.jnr-eeb.org <http://www.jnr-eeb.org>
-- Ivan CALANDRA PhD Student University of Hamburg Biozentrum Grindel und Zoologisches Museum Abt. Säugetiere Martin-Luther-King-Platz 3 D-20146 Hamburg, GERMANY +49(0)40 42838 6231 ivan.calan...@uni-hamburg.de ********** http://www.for771.uni-bonn.de http://webapp5.rrz.uni-hamburg.de/mammals/eng/1525_8_1.php ______________________________________________ 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.
