Re: [R] window (x,y) co-ordinates of datapoints
Hadley Wickham wrote: > >>> Is there any hope that, instead of fin, din, pin, etc someday >>> we will have fmm, dmm, pmm? >> >> Why worry about that, Alberto, when you can use my ammazing function: >> >> mm2in(x) return(x/25.4) >> >> thus: >> >> par(pin=mm2in(126)) > > But be sure to use it consistently! > http://www4.cnn.com/TECH/space/9911/10/orbiter.03/ > > ;) > That's why it should not be done _at all_, and all functions should have SI inputs (unless you are from Liberia, Myanmar, etc). Alberto Monteiro __ 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.
Re: [R] window (x,y) co-ordinates of datapoints
On 10/10/07, Jim Lemon <[EMAIL PROTECTED]> wrote: > Alberto Monteiro wrote: > > Prof Brian Ripley wrote: > > > >>Read ?par and the descriptiuon in 'An Introduction to R'. "din", > >> "fin", "mai", "omi", "pin" and "usr" are relevant. > >> > > > > Is there any hope that, instead of fin, din, pin, etc someday > > we will have fmm, dmm, pmm? > > > Why worry about that, Alberto, when you can use my ammazing function: > > mm2in(x) return(x/25.4) > > thus: > > par(pin=mm2in(126)) But be sure to use it consistently! http://www4.cnn.com/TECH/space/9911/10/orbiter.03/ ;) Hadley -- http://had.co.nz/ __ 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.
Re: [R] window (x,y) co-ordinates of datapoints
Alberto Monteiro wrote: > Prof Brian Ripley wrote: > >>Read ?par and the descriptiuon in 'An Introduction to R'. "din", >> "fin", "mai", "omi", "pin" and "usr" are relevant. >> > > Is there any hope that, instead of fin, din, pin, etc someday > we will have fmm, dmm, pmm? > Why worry about that, Alberto, when you can use my ammazing function: mm2in(x) return(x/25.4) thus: par(pin=mm2in(126)) Jim __ 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.
Re: [R] window (x,y) co-ordinates of datapoints
Look at the cnvrt.coords function in the TeachingDemos package, it does this type of thing for you. -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare [EMAIL PROTECTED] (801) 408-8111 > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Samuel Kemp > Sent: Tuesday, October 09, 2007 4:59 AM > To: [EMAIL PROTECTED] > Subject: [R] window (x,y) co-ordinates of datapoints > > Hi, > > In the getGraphicsEvent function the (x,y) co-ordinates > returned from the mouse move are in relation to where the > mouse is located within the device window (i.e. the lower > left corner of the window is '(0,0)', the upper right is > '(1,1)'). Is there a way of returning the (x,y) co-ordinates > of data points plotted where instead of x and y being the > actual data points they are the coordinates of the device window. > > e.g. below is a simple plot of x,y data > > x <- 1:10 > y <- x*20 > plot(x,y) > > > x[4] > 4 > > > y[4] > 80 > > what I actually want to know is where (x[4],y[4]) is within > the device window. > > Does any-one have any ideas? > > Thanks in advance, > > Sam > > [[alternative HTML version deleted]] > > __ > 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. > __ 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.
Re: [R] window (x,y) co-ordinates of datapoints
On Tue, 9 Oct 2007, hadley wickham wrote: > On 10/9/07, Prof Brian Ripley <[EMAIL PROTECTED]> wrote: >> On Tue, 9 Oct 2007, Alberto Monteiro wrote: >> >>> >>> Prof Brian Ripley wrote: Read ?par and the descriptiuon in 'An Introduction to R'. "din", "fin", "mai", "omi", "pin" and "usr" are relevant. >>> Is there any hope that, instead of fin, din, pin, etc someday >>> we will have fmm, dmm, pmm? >> >> No. R is quite capable of scaling by 25.4. > > Where did the inches come from? Is it for compatibility with S-plus? > I can't imagine that Ross would have used inches by default. >From S's precursor GR-Z as I recall, from the 1970s. Note that all the base graphics devices are sized in inches (the pixel ones came later and are Guido's or mine), and most of those are Ross's doing. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __ 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.
Re: [R] window (x,y) co-ordinates of datapoints
On 10/9/07, Prof Brian Ripley <[EMAIL PROTECTED]> wrote: > On Tue, 9 Oct 2007, Alberto Monteiro wrote: > > > > > Prof Brian Ripley wrote: > >> > >> Read ?par and the descriptiuon in 'An Introduction to R'. "din", > >> "fin", "mai", "omi", "pin" and "usr" are relevant. > >> > > Is there any hope that, instead of fin, din, pin, etc someday > > we will have fmm, dmm, pmm? > > No. R is quite capable of scaling by 25.4. Where did the inches come from? Is it for compatibility with S-plus? I can't imagine that Ross would have used inches by default. Hadley -- http://had.co.nz/ __ 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.
Re: [R] window (x,y) co-ordinates of datapoints
On Tue, 9 Oct 2007, Alberto Monteiro wrote: > > Prof Brian Ripley wrote: >> >> Read ?par and the descriptiuon in 'An Introduction to R'. "din", >> "fin", "mai", "omi", "pin" and "usr" are relevant. >> > Is there any hope that, instead of fin, din, pin, etc someday > we will have fmm, dmm, pmm? No. R is quite capable of scaling by 25.4. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __ 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.
Re: [R] window (x,y) co-ordinates of datapoints
Duncan Murdoch stats.uwo.ca> writes: > > On 10/9/2007 8:16 AM, Alberto Monteiro wrote: > > Prof Brian Ripley wrote: > >> > >> Read ?par and the descriptiuon in 'An Introduction to R'. "din", > >> "fin", "mai", "omi", "pin" and "usr" are relevant. > >> > > Is there any hope that, instead of fin, din, pin, etc someday > > we will have fmm, dmm, pmm? > > I don't think so (why mm, not cm or m or km?), but grid allows you to > specify the units for most measurements, so one day you may be able to > do that in whatever passes for par() by then. > > Duncan Murdoch For anyone interested, there is a larger selection of units online here, as well as other places, http://en.wikipedia.org/wiki/SI_prefix upon seeing which, I wondered (in the spirit of a google) if there was a prefix beyond yotta called lotta? ken -- Ken Knoblauch Inserm U846 Institut Cellule Souche et Cerveau Département Neurosciences Intégratives 18 avenue du Doyen Lépine 69500 Bron France __ 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.
Re: [R] window (x,y) co-ordinates of datapoints
On 10/9/2007 8:16 AM, Alberto Monteiro wrote: > Prof Brian Ripley wrote: >> >> Read ?par and the descriptiuon in 'An Introduction to R'. "din", >> "fin", "mai", "omi", "pin" and "usr" are relevant. >> > Is there any hope that, instead of fin, din, pin, etc someday > we will have fmm, dmm, pmm? I don't think so (why mm, not cm or m or km?), but grid allows you to specify the units for most measurements, so one day you may be able to do that in whatever passes for par() by then. Duncan Murdoch __ 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.
Re: [R] window (x,y) co-ordinates of datapoints
Prof Brian Ripley wrote: > > Read ?par and the descriptiuon in 'An Introduction to R'. "din", > "fin", "mai", "omi", "pin" and "usr" are relevant. > Is there any hope that, instead of fin, din, pin, etc someday we will have fmm, dmm, pmm? Alberto Monteiro __ 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.
Re: [R] window (x,y) co-ordinates of datapoints
On Tue, 9 Oct 2007, Samuel Kemp wrote:
> Hi,
>
> In the getGraphicsEvent function the (x,y) co-ordinates returned from the
> mouse move are in relation to where the mouse is located within the device
> window (i.e. the lower left corner of the window is '(0,0)', the upper
> right is '(1,1)').
You do realise that is specific to the windows() device? The
getGraphicsEvent() help does not say what happens on the windows() device
if 'rescale != "R"', when the 'window' is not simply related to the device
surface -- so I'll ignore that.
> Is there a way of returning the (x,y) co-ordinates of
> data points plotted where instead of x and y being the actual data points
> they are the coordinates of the device window.
>
> e.g. below is a simple plot of x,y data
>
> x <- 1:10
> y <- x*20
> plot(x,y)
>
>> x[4]
> 4
>
>> y[4]
> 80
>
> what I actually want to know is where (x[4],y[4]) is within the device
> window.
>
> Does any-one have any ideas?
Read ?par and the descriptiuon in 'An Introduction to R'. "din", "fin",
"mai", "omi", "pin" and "usr" are relevant.
You have only one figure, no outer margins and linear scales. For your
example on Linux (after resizing) I got
> par("din")
[1] 9.162549 6.407743
> par("mai")
[1] 1.0407480 0.8366798 0.8366798 0.4285433
> par("pin")
[1] 7.897326 4.530315
which tells me the plot region has corners (0.8366798, 1.0407480) and
(9.162549-0.8366798, 6.407743-0.4285433)
and
> par("usr")
[1] 0.64 10.36 12.80 207.20
tells me the user coordinates of those corners. That suffices to do the
mapping.
>
> Thanks in advance,
>
> Sam
>
> [[alternative HTML version deleted]]
>
> __
> 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.
>
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UKFax: +44 1865 272595
__
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.
