[R] text in boxplots

[Greg Snow]

Looking at the help for scatterplot, it looks like there is a 6th option
(which is probably the preferred method):

6. set the reset.par argument to FALSE in calling scatterplot as it
states in the documentation for scatterplot.  (still look at the help on
'xpd' argment to par if you want to add text to the margins).

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at intermountainmail.org
(801) 408-8111
 
 

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Greg Snow
> Sent: Friday, September 07, 2007 9:01 AM
> To: Yves Moisan; r-help at stat.math.ethz.ch
> Subject: Re: [R] text in boxplots
> 
> The posting guide (a link at the bottom of every e-mail from 
> the list) suggests including a small example of what you are 
> trying to do.
> Without an example, we have to guess at what you are trying to do.
> 
> I am still guessing since you still did not include an 
> example.  It appears that part of the problem may be that the 
> scatterplot function from the car package does not leave the 
> user coordinate system in a state that matches intuitively 
> with the data.  Your call to text is probably placing the 
> text outside of the plotting region where it is not visible 
> (possibly even in someone elses cubicle/office).  The mtext 
> function is not affected as much by this since it uses a 
> different coordinate system (based on the margins rather than 
> the user coordinates).
> 
> To place text on the plot, you need to find the cooresponding 
> coordinates.  There are a few different ways to do this:
> 
> 1. use par('usr') to find out what the current user 
> coordinates are and compute your coordinates based on that.
> 2. use par(usr=c(...)) to set the user coordinates to match 
> where you want to plot.
> 3. use the locator function to interactively choose the 
> locations and use the resulting coordinates.
> 4. use the cnvrt.coords function from the TeachingDemos 
> package to convert from figure or device coordinates to the 
> current user coordinate system.
> 5. contact the author of the function and ask him to set the 
> user coordinates to something more intuitive before exiting 
> and wait for the change.
> 
> Look at the help for par for more information, specifically 
> look at the 'usr' entry and possibly the 'xpd' entry if you 
> want to add text to the marginal boxplots.
> 
> --
> Gregory (Greg) L. Snow Ph.D.
> Statistical Data Center
> Intermountain Healthcare
> greg.snow at intermountainmail.org
> (801) 408-8111
>  
>  
> 
> > -----Original Message-----
> > From: r-help-bounces at stat.math.ethz.ch 
> > [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Yves Moisan
> > Sent: Friday, September 07, 2007 5:05 AM
> > To: r-help at stat.math.ethz.ch
> > Subject: Re: [R] text in boxplots
> > 
> > 
> > Hi Greg,
> > 
> > Actually, I'm using the scatterplot function in the car 
> namespace.  My 
> > understanding is that the scatterplot is turned into a boxplot when 
> > the x variable is a factor, but I can't see that in the code of the 
> > function.
> > I've successfully modified the function to output regression stats 
> > (R^^2,
> > etc.) with the method 'text', but I can't seem to get any 
> text printed 
> > when the result of a call to scatterplot is a bunch of boxplots.
> > 
> > I don't know how boxplots end up being generated (I like it
> > though) in a call to car:scatterplot.  The same data in ggobi would 
> > show the "standard"
> > scatterplot with data aligned vertically in lines along the 
> values of 
> > the x
> > (factor) variable but car:scatterplot draws nice boxes 
> around the data 
> > as a bonus.  I guess I'll need to follow with some 
> debugging tool.  I 
> > find it odd that mtext works though.  Or maybe some 
> graphics parameter 
> > is set such that text doesn't show.
> > 
> > Thanx Greg.
> > --
> > View this message in context: 
> > http://www.nabble.com/text-in-boxplots-tf4394528.html#a12553104
> > Sent from the R help mailing list archive at Nabble.com.
> > 
> > ______________________________________________
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> > 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.
> >
> 
> ______________________________________________
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> PLEASE do read the posting guide 
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> and provide commented, minimal, self-contained, reproducible code.
>