dear R experts: I am playing with boxplots for the first time. most of it is intuitive, although there was less info on the web than I had hoped. alas, for some odd reason, my R boxplots have some fat black dots, not just the hollow outlier plots. Is there a description of when R draws hollow vs. fat dots somewhere? [and what is the parameter to change just the size of these dots?] Also, let me show my fundamental ignorance: I am a little surprised that the average box boxplot would not show the mean and sdv, too, at least optionally. Is there a common way to accomplish this (e.g., in a different color), or do I just construct it myself with standard R graphics line() commands? advice appreciated. regards, /iaw
ivo welch kirjoitti:> dear R experts: > > I am playing with boxplots for the first time. most of it is > intuitive, although there was less info on the web than I had hoped. > > alas, for some odd reason, my R boxplots have some fat black dots, not > just the hollow outlier plots. Is there a description of when R draws > hollow vs. fat dots somewhere? > > [and what is the parameter to change just the size of these dots?] > > Also, let me show my fundamental ignorance: I am a little surprised > that the average box boxplot would not show the mean and sdv, too, at > least optionally. Is there a common way to accomplish this (e.g., in > a different color), or do I just construct it myself with standard R > graphics line() commands? > > advice appreciated. > > regards, > > /iaw > > ______________________________________________ > 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.
Hi Ivo, ivo welch wrote:> alas, for some odd reason, my R boxplots have some fat black dots, not > just the hollow outlier plots. Is there a description of when R draws > hollow vs. fat dots somewhere? > [and what is the parameter to change just the size of these dots?]Have you tried the command '?boxplot' already? It should help you to understand the syntax.> Also, let me show my fundamental ignorance: I am a little surprised > that the average box boxplot would not show the mean and sdv, too, at > least optionally. Is there a common way to accomplish this (e.g., in > a different color), or do I just construct it myself with standard R > graphics line() commands?Could you post the command(s) you have entered? Without a reproducible example we are tapping in the dark. Kind regards, Kimmo
Hi r-help-bounces at r-project.org napsal dne 16.01.2009 15:24:26:> dear R experts: > > I am playing with boxplots for the first time. most of it is > intuitive, although there was less info on the web than I had hoped. > > alas, for some odd reason, my R boxplots have some fat black dots, not > just the hollow outlier plots. Is there a description of when R draws > hollow vs. fat dots somewhere?Standard use of boxplot does not draw filled dots, just hollow points. Didnt you by chance use pch=19.> > [and what is the parameter to change just the size of these dots?]Details on bxp help page outlty, outlwd, outpch, outcex, outcol, outbg: outlier line type, line width, point character, point size expansion, color, and background color. The default outlty= "blank" suppresses the lines and outpch=NA suppresses points.> > Also, let me show my fundamental ignorance: I am a little surprised > that the average box boxplot would not show the mean and sdv, too, at > least optionally. Is there a common way to accomplish this (e.g., in > a different color), or do I just construct it myself with standard R > graphics line() commands?I always expect boxplot to show median and IQR, however I have seen such twisted boxplots elsewhere. Eg if you looked in CRAN search facility you would easily find R-help archive January 2004: Re: [R] adding mean to boxplot Regards Petr> > advice appreciated. > > regards, > > /iaw > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html> and provide commented, minimal, self-contained, reproducible code.