[R] Plots Without Displaying

[Gabor Grothendieck]

Also check out the displaylist:

http://tolstoy.newcastle.edu.au/R/help/04/05/0817.html

On 8/17/06, Lothar Botelho-Machado <r-help at botelho-machado.de> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Thank you,
>
> It seems that a list of plots is just possible using lattice plots. But
> that's a good keyword for me to look for, I appreciate your help!
>
> Lothar
>
>
> Christos Hatzis wrote:
> > Yes, you can do that for lattice-based plots.  The functions in the lattice
> > package produce objects of class "trellis" which can be stored in a list and
> > processed or updated at a later time:
> >
> > library(lattice)
> > attach(barley)
> > plotList <- list(length=3)
> > plotList[[1]] <- xyplot(yield ~ site, data=barley)
> > plotList[[2]] <- xyplot(yield ~ variety, data=barley)
> > plotList[[3]] <- xyplot(yield ~ year, data=barley)
> >
> > plotList
> > plotList[[3]] <- update(plotList[[3]], yaxis="Yield (bushels/acre)")
> > print(plotList[[3]])
> >
> > Obviously, you can store any lattice-based plot in the list.
> >
> > HTH.
> >
> > -Christos
> >
> > Christos Hatzis, Ph.D.
> > Nuvera Biosciences, Inc.
> > 400 West Cummings Park
> > Suite 5350
> > Woburn, MA 01801
> > Tel: 781-938-3830
> > www.nuverabio.com
> >
> >
> >
> > -----Original Message-----
> > From: r-help-bounces at stat.math.ethz.ch
> > [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Lothar
> > Botelho-Machado
> > Sent: Wednesday, August 16, 2006 4:49 PM
> > To: r-help at stat.math.ethz.ch
> > Subject: Re: [R] Plots Without Displaying
> >
> > Prof Brian Ripley wrote:
> >>> Yes, see
> >>>
> >>> ?jpeg
> >>> ?bitmap
> >>>
> >>> and as you didn't tell us your OS we don't know if these are available
> >>> to you.
> >>>
> >>> jpeg(file="test.jpg")
> >>> boxplot(sample(100))
> >>> dev.off()
> >>>
> >>> may well work.
> >>>
> >>> 'An Introduction to R' explains about graphics devices, including these.
> >>>
> >>>
> >>> On Wed, 16 Aug 2006, Lothar Botelho-Machado wrote:
> >>>
> >>>> -----BEGIN PGP SIGNED MESSAGE-----
> >>>> Hash: SHA1
> >>>>
> >>>> R Help Mailing List,
> >>>>
> >>>>
> >>>> I'd like to generate a plot that I could display and/or store it as e.g.
> >>>> jpeg. But unfortunately always a plotting window opens. Is it
> >>>> possible to prevent that?
> >>>>
> >>>> I tried the following:
> >>>> R> bp<-boxplot( sample(100), plot=FALSE)
> >>>>
> >>>> This works somehow, but it only stores data (as discribed in the
> >>>> help) in bp and it is not possible afaik to display bp later on or
> >>>> store them as a jpeg.
> >>>>
> >>>> The next:
> >>>> R> p<-plot(sample(100), sample(100), plot=FALSE)
> >>>> ..and also a variant using jpeg() didn't work at all.
> >>>>
> >>>> Is there a way to generally store the plots as object, without
> >>>> displaying them, or perhaps directly saving them to disc as jpeg?
> >>>>
> >>>> A "Yes" or "No" or any further help/links are appreciated!!!
> >>>
> >
> >
> >
> > Thank you for the explanation and your patience in answering me this
> > obviously very simple question!!
> >
> > Originally I tried to store plots directly in a list. So writing them
> > directly to disc was just a good alternative. I knew that that jpeg()
> > provides functionality for that, but didn't use it correctly.
> >
> > Hence, is it also possible to store a plot in a list, somehow?
> >
> > Kind regards,
> >  Lothar
>
> ______________________________________________
> R-help at stat.math.ethz.ch 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.
>
>
>
>
>
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.3 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
>
> iD8DBQFE5HU1HRf7N9c+X7sRAguEAJ4855nuonJaB9VXHkGOr/SZhqow8wCfXcuB
> o8oqpYoJ7MXgnVtnuGAE5Yk=
> =ZWgN
> -----END PGP SIGNATURE-----
>
> ______________________________________________
> R-help at stat.math.ethz.ch 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.
>