I'm afraid I still don't get it (see in line below). On Wed, Mar 9, 2011 at 1:49 AM, C.H. <chainsawti...@gmail.com> wrote: > Sorry for being ambiguous. > > The data are some continuous variable (Y-axis) categorized into 3 > groups (Controls, Depressed EF and Preserved EF, X-asis).
OK. I'm having trouble way before this though. Even taking just one group, I still don't understand what this graphic is showing. > > The band of dots on the plot is the data point. This is where I'm getting lost. You have a *band* of dots for each data point (singular)? My head is exploding thinking about this. Why do you have mutiple dots for each point? The density of dots > and the "fatness" of the band present the frequency of a particular > value in Y-axis. But the Y-axis variable is continuous. In order to have counts at different values of y you will need to bin it somehow. And even then you will still have only *one* value for the count in each bin. So again, how and why are there muliple dots in each band (your term) / bin (my term)? This property is similar to the violin plot: showing > the probability density of the data at different values. Instead of > showing a shape in violin plot, this plot shows the actual > distribution of the data points. OK, so let's say we bin y and get the counts in each bin. We can plot a point for each point that goes into that count, but what determines the position of each point on the x-axis? It's entirely possible (even probable) that my poor little brain just can't wrap itself around the idea. Maybe someone else can chime in and help me out. Best, Ista > > Thank you. > > Regards, > > CH > > > On Tue, Mar 8, 2011 at 11:14 PM, Ista Zahn <iz...@psych.rochester.edu> wrote: >> Hi, >> I don't understand what is being plotted here. Can you describe what >> you want in more detail? >> >> Best, >> Ista >> >> On Tue, Mar 8, 2011 at 7:27 AM, C.H. <chainsawti...@gmail.com> wrote: >>> Dear R Users, >>> >>> I would like to know is there any package to create a plot like this? >>> >>> http://dl.dropbox.com/u/5409929/cs1160521f01.gif >>> >>> X axis is categorical. And the positions of the points are >>> corresponding to the frequency. (similar to violinplot) >>> >>> Thank you. >>> >>> Regards, >>> >>> CH >>> >>> -- >>> CH Chan >>> >>> ______________________________________________ >>> 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. >>> >> >> >> >> -- >> Ista Zahn >> Graduate student >> University of Rochester >> Department of Clinical and Social Psychology >> http://yourpsyche.org >> > > > > -- > CH Chan > -- Ista Zahn Graduate student University of Rochester Department of Clinical and Social Psychology http://yourpsyche.org ______________________________________________ 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.
