Re: [R] How do I change which R Graphics Device is active?
My version would be
newDev - function() { dev.new(); invisible( dev.cur() ) }
I agree with Hadley that return() is redundant in this instance.
Using invisible() suppresses automatic printing of the returned value
when it is not being assigned to a variable, thus making it more like
dev.new().
While we're at it, consider
newDev - function(...) { dev.new(...); invisible( dev.cur() ) }
which should allow one to pass through optional arguments (which only
makes sense if they're valid for dev.new(), of course).
-Don
At 7:18 PM -0500 6/30/09, hadley wickham wrote:
On Tue, Jun 30, 2009 at 2:12 PM, Barry
Rowlingsonb.rowling...@lancaster.ac.uk wrote:
On Tue, Jun 30, 2009 at 8:05 PM, Mark Knechtmarkkne...@gmail.com wrote:
You could wrap it in a function of your own making, right?
AddNewDev = function() {dev.new();AddNewDev=dev.cur()}
histPlot=AddNewDev()
Seems to work.
You leaRn fast :) Probably better style is:
newDev = function(){dev.new();return(dev.cur())}
- which returns the value explicitly with return().
R isn't C! ;) I'd claim idiomatic R only uses return for special
cases (i.e. when you can terminate the function early)
Hadley
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Re: [R] How do I change which R Graphics Device is active?
On Wed, Jul 1, 2009 at 3:30 PM, Don MacQueenm...@llnl.gov wrote:
My version would be
newDev - function() { dev.new(); invisible( dev.cur() ) }
I agree with Hadley that return() is redundant in this instance. Using
invisible() suppresses automatic printing of the returned value when it is
not being assigned to a variable, thus making it more like dev.new().
Hmmm. I really like using explicit return calls in my functions. It
seems, to me, to make it clear that I intend to return a value and
that value is going to be useful. How can others tell (without looking
at the ample documentation, of course) that you intend your function
to have a meaningful return value and it's not just falling through?
As The Zen of Python puts it:
Explicit is better than implicit.
Readability counts.
but you know, hey, whatever you want to do :)
Barry
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Re: [R] How do I change which R Graphics Device is active?
On Wed, Jul 1, 2009 at 7:45 AM, Barry
Rowlingsonb.rowling...@lancaster.ac.uk wrote:
On Wed, Jul 1, 2009 at 3:30 PM, Don MacQueenm...@llnl.gov wrote:
My version would be
newDev - function() { dev.new(); invisible( dev.cur() ) }
I agree with Hadley that return() is redundant in this instance. Using
invisible() suppresses automatic printing of the returned value when it is
not being assigned to a variable, thus making it more like dev.new().
Hmmm. I really like using explicit return calls in my functions. It
seems, to me, to make it clear that I intend to return a value and
that value is going to be useful. How can others tell (without looking
at the ample documentation, of course) that you intend your function
to have a meaningful return value and it's not just falling through?
As The Zen of Python puts it:
Explicit is better than implicit.
Readability counts.
but you know, hey, whatever you want to do :)
Barry
As a newbie and being that I have no formal or job related programming
experience I personally like having a return value as it makes me
think about what I'm doing. That's just me though.
- Mark
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Re: [R] How do I change which R Graphics Device is active?
How about: dev.cur() dev.list() dev.next(which = dev.cur()) dev.prev(which = dev.cur()) dev.off(which = dev.cur()) dev.set(which = dev.next()) dev.new(...) graphics.off() dev.cur() dev.list() dev.next(which = dev.cur()) dev.prev(which = dev.cur()) dev.off(which = dev.cur()) dev.set(which = dev.next()) dev.new(...) graphics.off() :-) bests milton On Tue, Jun 30, 2009 at 12:07 PM, Mark Knecht markkne...@gmail.com wrote: Hello, If I execute X11() plot( stuff ) X11() plot( other stuff) then at this point I have two windows with plots and the second graphics window is active. I don't see the devices using ls(). 1) Without destroying the second window how do I make the first window active again? 2) How do I destroy a specific window when I'm done with it? 3) Is there some generic way to understand what windows are out there at any given time or do I need to create some sort of list and keep track of it myself? In general I'd like to have 4 or 5 windows and be able to switch and update individual plots as the needs arise. Is there a way to name these devices/windows? I don't see any examples of this sort of thing in the help file. Maybe there's a different add-on package I don't yet know about? Thanks, Mark __ 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.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[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.
Re: [R] How do I change which R Graphics Device is active?
Thanks milton! Beautiful! Cheers, Mark On Tue, Jun 30, 2009 at 9:15 AM, milton rusermilton.ru...@gmail.com wrote: How about: dev.cur() dev.list() dev.next(which = dev.cur()) dev.prev(which = dev.cur()) dev.off(which = dev.cur()) dev.set(which = dev.next()) dev.new(...) graphics.off() dev.cur() dev.list() dev.next(which = dev.cur()) dev.prev(which = dev.cur()) dev.off(which = dev.cur()) dev.set(which = dev.next()) dev.new(...) graphics.off() :-) bests milton On Tue, Jun 30, 2009 at 12:07 PM, Mark Knecht markkne...@gmail.com wrote: Hello, If I execute X11() plot( stuff ) X11() plot( other stuff) then at this point I have two windows with plots and the second graphics window is active. I don't see the devices using ls(). 1) Without destroying the second window how do I make the first window active again? 2) How do I destroy a specific window when I'm done with it? 3) Is there some generic way to understand what windows are out there at any given time or do I need to create some sort of list and keep track of it myself? In general I'd like to have 4 or 5 windows and be able to switch and update individual plots as the needs arise. Is there a way to name these devices/windows? I don't see any examples of this sort of thing in the help file. Maybe there's a different add-on package I don't yet know about? Thanks, Mark __ 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] How do I change which R Graphics Device is active?
On Tue, Jun 30, 2009 at 5:15 PM, milton rusermilton.ru...@gmail.com wrote: How about: dev.cur() dev.list() dev.next(which = dev.cur()) dev.prev(which = dev.cur()) dev.off(which = dev.cur()) dev.set(which = dev.next()) dev.new(...) graphics.off() dev.cur() dev.list() dev.next(which = dev.cur()) dev.prev(which = dev.cur()) dev.off(which = dev.cur()) dev.set(which = dev.next()) dev.new(...) graphics.off() :-) bests To keep track, call dev.cur() after creating a new plot and assign it to something memorable. Here's how to keep a histogram and an xy plot: dev.new();histPlot = dev.cur() dev.new();xyPlot = dev.cur() dev.set(histPlot);hist(runif(100)) X11cairo 2 dev.set(xyPlot);plot(1:10) X11cairo 3 You just have to remember to call dev.set before your particular plot. Barry __ 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] How do I change which R Graphics Device is active?
On 30-Jun-09 16:48:15, Barry Rowlingson wrote: To keep track, call dev.cur() after creating a new plot and assign it to something memorable. Here's how to keep a histogram and an xy plot: dev.new();histPlot = dev.cur() dev.new();xyPlot = dev.cur() dev.set(histPlot);hist(runif(100)) X11cairo 2 dev.set(xyPlot);plot(1:10) X11cairo 3 You just have to remember to call dev.set before your particular plot. Barry Barry, spot on! If there were a prize for postings with simplicity, clarity, conciseness and usability, I would nominate yours (especially in the Why didn't *I* think of that? category). Cheers, Ted. E-Mail: (Ted Harding) ted.hard...@manchester.ac.uk Fax-to-email: +44 (0)870 094 0861 Date: 30-Jun-09 Time: 18:33:40 -- XFMail -- __ 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] How do I change which R Graphics Device is active?
On Tue, Jun 30, 2009 at 9:48 AM, Barry Rowlingsonb.rowling...@lancaster.ac.uk wrote: On Tue, Jun 30, 2009 at 5:15 PM, milton rusermilton.ru...@gmail.com wrote: How about: dev.cur() dev.list() dev.next(which = dev.cur()) dev.prev(which = dev.cur()) dev.off(which = dev.cur()) dev.set(which = dev.next()) dev.new(...) graphics.off() dev.cur() dev.list() dev.next(which = dev.cur()) dev.prev(which = dev.cur()) dev.off(which = dev.cur()) dev.set(which = dev.next()) dev.new(...) graphics.off() :-) bests To keep track, call dev.cur() after creating a new plot and assign it to something memorable. Here's how to keep a histogram and an xy plot: dev.new();histPlot = dev.cur() dev.new();xyPlot = dev.cur() dev.set(histPlot);hist(runif(100)) X11cairo 2 dev.set(xyPlot);plot(1:10) X11cairo 3 You just have to remember to call dev.set before your particular plot. Barry Makes great sense and fits in very nicely with what I'm doing. Thanks! - Mark __ 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] How do I change which R Graphics Device is active?
On Tue, Jun 30, 2009 at 6:33 PM, Ted Hardingted.hard...@manchester.ac.uk wrote: Barry, spot on! If there were a prize for postings with simplicity, clarity, conciseness and usability, I would nominate yours (especially in the Why didn't *I* think of that? category). Thanks Ted! It's just a shame dev.new() doesn't return the device number, since that would make things even simpler: # does not work like this: xyPlot = dev.new() histPlot = dev.new() Instead it returns whatever the device function (X11,png,postscript etc) returns, and they all seem to return NULLs. I suppose in the future a device function might return something useful. Barry __ 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] How do I change which R Graphics Device is active?
On Tue, Jun 30, 2009 at 11:45 AM, Barry
Rowlingsonb.rowling...@lancaster.ac.uk wrote:
On Tue, Jun 30, 2009 at 6:33 PM, Ted
Hardingted.hard...@manchester.ac.uk wrote:
Barry, spot on! If there were a prize for postings with
simplicity, clarity, conciseness and usability, I would nominate
yours (especially in the Why didn't *I* think of that? category).
Thanks Ted!
It's just a shame dev.new() doesn't return the device number, since
that would make things even simpler:
# does not work like this:
xyPlot = dev.new()
histPlot = dev.new()
Instead it returns whatever the device function (X11,png,postscript
etc) returns, and they all seem to return NULLs. I suppose in the
future a device function might return something useful.
Barry
You could wrap it in a function of your own making, right?
AddNewDev = function() {dev.new();AddNewDev=dev.cur()}
histPlot=AddNewDev()
Seems to work.
- Mark
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Re: [R] How do I change which R Graphics Device is active?
On Tue, Jun 30, 2009 at 8:05 PM, Mark Knechtmarkkne...@gmail.com wrote:
You could wrap it in a function of your own making, right?
AddNewDev = function() {dev.new();AddNewDev=dev.cur()}
histPlot=AddNewDev()
Seems to work.
You leaRn fast :) Probably better style is:
newDev = function(){dev.new();return(dev.cur())}
- which returns the value explicitly with return().
Barry
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Re: [R] How do I change which R Graphics Device is active?
On Tue, Jun 30, 2009 at 12:12 PM, Barry
Rowlingsonb.rowling...@lancaster.ac.uk wrote:
On Tue, Jun 30, 2009 at 8:05 PM, Mark Knechtmarkkne...@gmail.com wrote:
You could wrap it in a function of your own making, right?
AddNewDev = function() {dev.new();AddNewDev=dev.cur()}
histPlot=AddNewDev()
Seems to work.
You leaRn fast :) Probably better style is:
newDev = function(){dev.new();return(dev.cur())}
- which returns the value explicitly with return().
Barry
Thanks Ted. I've missed this return function. I'll start using that.
Cheers,
Mark
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Re: [R] How do I change which R Graphics Device is active?
Oops sorry. Thanks BARRY!
On Tue, Jun 30, 2009 at 12:14 PM, Mark Knechtmarkkne...@gmail.com wrote:
On Tue, Jun 30, 2009 at 12:12 PM, Barry
Rowlingsonb.rowling...@lancaster.ac.uk wrote:
On Tue, Jun 30, 2009 at 8:05 PM, Mark Knechtmarkkne...@gmail.com wrote:
You could wrap it in a function of your own making, right?
AddNewDev = function() {dev.new();AddNewDev=dev.cur()}
histPlot=AddNewDev()
Seems to work.
You leaRn fast :) Probably better style is:
newDev = function(){dev.new();return(dev.cur())}
- which returns the value explicitly with return().
Barry
Thanks Ted. I've missed this return function. I'll start using that.
Cheers,
Mark
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Re: [R] How do I change which R Graphics Device is active?
On Tue, Jun 30, 2009 at 2:12 PM, Barry
Rowlingsonb.rowling...@lancaster.ac.uk wrote:
On Tue, Jun 30, 2009 at 8:05 PM, Mark Knechtmarkkne...@gmail.com wrote:
You could wrap it in a function of your own making, right?
AddNewDev = function() {dev.new();AddNewDev=dev.cur()}
histPlot=AddNewDev()
Seems to work.
You leaRn fast :) Probably better style is:
newDev = function(){dev.new();return(dev.cur())}
- which returns the value explicitly with return().
R isn't C! ;) I'd claim idiomatic R only uses return for special
cases (i.e. when you can terminate the function early)
Hadley
--
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