[R] Device drivers - png()/jpeg()
klaster at karlin.mff.cuni.cz
Mon Apr 2 15:36:28 CEST 2007
Robert McFadden napsal(a):
>> -----Original Message-----
>> From: r-help-bounces at stat.math.ethz.ch
>> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of
>> Schmitt, Corinna
>> Sent: Monday, April 02, 2007 2:58 PM
>> To: r-help at stat.math.ethz.ch
>> Subject: [R] Device drivers - png()/jpeg()
>> Hallo R-experts,
>> I produced a R graphic with the help of the following commands:
>> plot(0:4,0:4, type = "n", xlab = "X-Werte", ylab = "Y-Werte")
>> points(rnorm(100), rnorm(100), col = "black") locator(2,
>> type= "l") locator(2, type = "l", col = "red")
>> I could display this graphic by using windows() before
>> entering those commands. Now I want to save this graphic as
>> PNG file and JPEG file. I studied the online-help and the
>> manuals extensively but could not find a solution.
>> Can anyone tell me the corresponding command in detail?
> png(file="plot_names.png") # for jpeg and pdf use:
> jpeg(file="plot_names.jpeg") and pdf((file="plot_names.pdf")
> plot(0:4,0:4, type = "n", xlab = "X-Werte", ylab = "Y-Werte")
> points(rnorm(100), rnorm(100), col = "black") locator(2, type= "l")
> locator(2, type = "l", col = "red")
Most probably that will not work - interactive and batch-like modes were
You'll have to decide whether you want/need to select coordinates
interactively using locator() or not. If you do not need locator() and
can provide the coordinates to abline() or other functions, use pdf(),
jpeg() and png() as suggested above.
If you do need locator() and you are using a GUI for R (or a stabdard
Windows interface for R - you didn't specify your OS), you can still
select 'File -> Save as' in the main menu and save you plot manually.
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Dept. of Probability and Statistics
Charles University in Prague
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