Turns out that stripchart() is the easiest way to get what I believe the OP is looking for.
Here is some example data tmp <- data.frame( g=sample(c('M','F'), 25, replace=TRUE), val = runif(25, 1, 10)) Then: stripchart(val ~ g, data=tmp, vertical=TRUE) or with some improvement to aesthetics: stripchart(val ~ g, data=tmp, vertical=TRUE, xlim=c(0.5, 2.5)) This was actually not easy to find, and I am a very experienced R user. help.search('dotplot') did not find it. require(sos) findFn('dotplot') did not find it. This is despite the fact that ?stripchart refers to itself as a function to create "dot plots". (So I do not think the OP should be chided for having difficulty) I did not find dotchart() to be useful, because it has a different concept of "dot plot", and I could not easily find a way to make it do the version I believe the OP wants. Unfortunately, that's what internet searching for "R dotplot" tends to lead to. Of course, if I misunderstand the OP request, this is so much blather! -Don -- Don MacQueen Lawrence Livermore National Laboratory 7000 East Ave., L-627 Livermore, CA 94550 925-423-1062 On 11/24/14, 11:21 AM, "Jeff Newmiller" <jdnew...@dcn.davis.ca.us> wrote: >"Some" of the web sites are likely always going to be over your head. The >correct strategy is to find some that are within reach, and work your way >through them. If you cannot copy some example code into R and execute it >from one of the sites that comes up when you search for "R dotplot" (e.g. >[1]) then you won't have much success communicating in a mailing list. >You really need to be able to give us the sequence of commands you are >having trouble with to get useful assistance via email. > >One of the biggest stumbling blocks for new R users is understanding >data, how it is imported, and how it is stored [2]. It might not seem >like the most likely place to start, but the Intro to R document and the >Importing Data document that come with R have a treasure trove of useful >stuff. If you need more handholding than that then there are quite a few >books and online courses. > >[1] http://www.statmethods.net/graphs/dot.html >[2] R is interactive.. learn to use the str function and the help system >(try typing ?str at the R prompt) to examine variables that examples are >using. >-------------------------------------------------------------------------- >- >Jeff Newmiller The ..... ..... Go >Live... >DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live >Go... > Live: OO#.. Dead: OO#.. Playing >Research Engineer (Solar/Batteries O.O#. #.O#. with >/Software/Embedded Controllers) .OO#. .OO#. >rocks...1k >-------------------------------------------------------------------------- >- >Sent from my phone. Please excuse my brevity. > >On November 24, 2014 1:08:39 AM PST, Juan Scheun ><jsch...@zoology.up.ac.za> wrote: >>Morning everyone >> >> >>I am relatively new to R and although there are tons of "how to" >>websites, >>some are just way over my head. I am currently trying to figure out how >>to >>create dot plot graphs with my data, where I have categories (i.e male >>/female) and values for each. I would like to display this as >>categories >>on the x axis and all values for each directly above the applicable >>category, thus not a scatter graph but in a line above for each. >> >>I have attached a quick picture I found on the internet to demonstrate >>roughly what I would like. >> >>Thank you all for your time >>Juan Scheun >>Department of Zoology and Entomology >>University of Pretoria >>Lynnwood Road >>Hillcrest >>Pretoria >>South Africa >>0002 >> >>Cell: +27 76 860 3315 >>Email: jsch...@zoology.up.ac.za >> >> >> >> >>--------------------------------------------------------------------- >>This message and attachments are subject to a disclaimer. Please refer >>to http://www.it.up.ac.za/documentation/governance/disclaimer/ for full >>details. / Hierdie boodskap en aanhangsels is aan 'n vrywaringsklousule >>onderhewig. Volledige besonderhede is by >>http://www.it.up.ac.za/documentation/governance/disclaimer/ beskikbaar. >> >> >>------------------------------------------------------------------------ >> >>______________________________________________ >>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. > >______________________________________________ >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. ______________________________________________ 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.