[R] remove black square from factor plot

[Petr PIKAL]

Hi

r-help-bounces at r-project.org napsal dne 20.10.2010 17:43:27:

> > str(species.factor)
> >  Factor w/ 81 levels "Acer_platanoides_Bl",..: 12 12 55 55 76 76 52 52 

> > 67 67 ...
> >
> > str(minmax)
> >  int [1:162] 6163779 7262127 6163779 7422941 6163779 6644861 6163779 
> > 6644861 6163779 7262127 ...
> 
> That is, my factor is the species listed two times each
> Acer_platanoides_Bl Acer_platanoides_Bl Sorbus_aucuparia_Bl 
> Sorbus_aucuparia_Bl..... more species
> 
> and minmax lists min_sp1 max_sp1 min_sp2 min_sp2......
> 
> Here an image of my plot (with more elements included, but you can see 
> the black squares in the centers of each box...)

This is not a black square, it is line which indicates median, which is to 
be expected in a boxplot. If you really want to remove it use

medlty=0

in your plot call as indicated in bxp help page.

Regards
Petr



> 
> http://img51.imageshack.us/img51/9011/plott.jpg
> 
> Jonas
> 
> 
> 2010-10-20 17:14, David Winsemius skrev:
> > On Oct 20, 2010, at 10:45 AM, fugelpitch wrote:
> >
> >> I have a factor which is species and the variables are a few sites 
> >> where this
> >> species live.
> >>
> >> When I plot:
> >>
> >> plot(species.factor, minlatitudemaxlatitude)
> >>
> >> the plot produced is automatically a boxplot which shows the range of 

> >> the
> >> species (which is what I want).
> >
> > This fact (a boxplot from the "plot" function) suggests that the 
> > objects you are plot()-ting are of some class for which there is a 
> > specific plot method. What do these commands return:
> >
> > str(species.factor)
> > str(minlatitudemaxlatitude)     # ?
> >
> >
> >> However, in the thin box which is produced by each species, there is 
> >> a small
> >> black square in "center position" of the box. Is it possible to 
> >> remove this.
> >> Have tried to include bxp(par(medpch=NA)) without success.
> >>
> >> Thanks!
> >>
> >> Jonas Josefsson
> >
> > David Winsemius, MD
> > West Hartford, CT
> 
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