Displaying 20 results from an estimated 10000 matches similar to: "Creation of png=problems"
2008 Feb 19
1
Bug using X11 on mac osx (for jpeg or png creation) (PR#10800)
Full_Name: Stephane Bonneaud
Version: 2.6.2
OS: OSX - Leopard 10.5.2
Submission from: (NULL) (195.221.233.130)
Hello,
I have a R code file containing the following code:
-------
# This code is in r2jpg.r
# myData is filled here with some data from a file
jpeg(filename="test.jpg",width=960,height=720,pointsize=16,quality=100)
plot(myData,xlab="anything",
2008 May 07
2
figure margins too large for a barplot in png, pdf ok
I've used to have a script with a barplot command it in, preceded by a
png:
png(graph.file,height=H,width=W)
barplot(t,names.arg=breaks[2:(length(t)+1)],tck=gridlines)
-- worked before R 2.6.2. When I tried it in R 2.6.2, which I have
for a while but didn't run with that script, it complained, the
margins too large, and I've googled the messages from our list where
neither
2003 Dec 30
2
split.screen problem with jpeg/png device (PR#6223)
Full_Name: Steve Koehler
Version: 1.8.1
OS: Solaris and Windows
Submission from: (NULL) (192.55.214.50)
In the following program, if output is sent to X11, you get all four graphs,
but if output is sent to .jpeg, you only get the C and D graphs. A workaround
is to do all the screen splitting at the top, before using any screens. This
also
fails with .png output.
jpeg ("test.jpeg")
2009 Jun 17
1
Unable to use jpeg(), png() etc.....
Hello,
I 've just re-installed R 2.9.0 on ubuntu 9.04.
I do not understand why I am unable to use simple device function such as jpeg(), png()...
> png()
Error in X11(paste("png::", filename, sep = ""), width, height, pointsize, :
unable to start device PNG
In addition: Warning message:
In png() : no png support in this version of R
> capabilities()
jpeg
2013 Sep 05
4
Shell Script Help
I have a script file in my cron.hourly that contains a good number of
scripts I must call.
#!/bin/sh
sleep 15
perl /scripts/create_graph.pl &
sleep 15
perl /scripts/create_graph_out.pl &
many more lines. etc.
Is there a way I can sleep random length to time before executing each
but background each one so master script returns promptly. Something
like.
sleep (random 1 - 300 seconds,
2006 Mar 01
1
Problems to get a ctree plot (library party) in a file via jpeg/png
Hello All,
I am using library "party" and I have found a curious/strange behaviour when
trying to save the output of a ctree in a file via jpeg/png command.
If you use:
################
library(party)
airq <- subset(airquality, !is.na(Ozone))
airct <- ctree(Ozone ~ ., data = airq)
plot(airct, terminal_panel = node_boxplot, drop_terminal = FALSE)
###############
you get a
2003 Jan 31
2
png()/jpeg()
When I execute the following code, it works just like I want it to: three
pages of nine (or fewer) plots. However, when I execute the code with the
first and last lines uncommented, I get three pages (files), but the 2nd &
3rd pages have overlapping plots. It's like a new page wasn't created.
I'm pretty sure I've either misplaced or left out a crucial call to some
2008 Feb 25
4
New version of X11, png and jpeg
R-devel has new versions of the X11(), png() and jpeg() devices on
Unix-alikes. The intention is that these are used identically to the
previous versions (which remain available) but will produce higher-quality
output with more features.
Pros:
Antialiasing of text and lines (can be turned off) but no blurring of
fills.
Buffering of the X11 display and fast repainting from a backing image.
2007 Mar 07
5
How to open more windows to make more graphs at once!
Dear R users,
I have a data frame (test) including five columns of upper (numeric), lower (numeric), observed (numeric), best_sim (numeric) and stname (factor with 80 levels, each level with different length). Now I would like to write a short program to draw one graph as follow for each level of stname but I would like also to draw each time 12 graphs for the 12 levels of stname in the same
2012 Oct 01
1
can't create png graphics under linux anymore
Hi,
since my update of Linux from opensuse 11.4 to 12.1 and the update of R
to 2.15.1 I can't produce graphics with png() or similar (like tiff,
jpeg etc.) anymore. The following error occurs:
> png()
Error in X11(paste("png::", filename, sep = ""), g$width, g$height,
pointsize, :
unable to start Device PNG
Additionally: Warning:
In png() : png isn't
2004 Sep 26
1
(no subject)
Hello R help mailing list,
I'm having difficulty saving a series of figures in an
analysis. I have attempted to save them in a for loop with
the following code:
for(i in 1:20){
sF<-paste("fig",i,".jpeg",sep="")
jpeg(file=sF,width=600,height=500,quality=100,pointsize=12)
attach(plotData)
xyplot(CHC~1:13),
detach(plotData)
graphics.off()
}
If I break
2004 Jan 19
1
png support on R debian sid 1.8.1 binary
I have updated my R to the current R version (1.8.1) using apt-get of the R
binaries for debian sid in cran.
Now, when I do:
png(file="myplot.png")
I get:
Error in X11(paste("png::", filename, sep = ""), width, height, pointsize,
:
unable to start device PNG
In addition: Warning message:
No png support in this version of R
what do I have to do to get the
2006 Nov 03
1
R CMD BATCH: unable to start device PNG
And on that note, here is a function that I use to get around it:
-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Jeffrey Horner
Sent: Friday, November 03, 2006 10:01 AM
To: ryszard.czerminski at novartis.com
Cc: r-help at stat.math.ethz.ch
Subject: Re: [R] R CMD BATCH: unable to start device PNG
ryszard.czerminski
2007 Feb 08
1
Impossible to get jpeg or png output
Hi,
When I want to output a png file, I have the following error message :
Error dans X11(paste("jpeg::", quality, ":", filename, sep = ""), width, :
inpossible de d?marrer le p?riph?rique JPEG
De plus : Warning message:
impossible d'ouvrir le fichier JPEG 'Test.jpeg'
or in english
Error in X11(paste("jpeg::", quality, ":",
2004 Jul 18
2
gray background in png
Hi all,
I'm having a problem creating png images with trellis.device. I would
like to create many plots with a white background using a sequence
number in the file argument (i.e. "%02d"). The first plot is as expected
with a white background. However, the second and all subsequent plots
have a gray background. I would like all plots to have a white (or
transparent)
2007 Oct 16
4
Create *png or *.jpeg plot under Linux
I have an example where i plot an image and load it dynamically in an image
analysis tool to create
a film (dynamic graph). This works well under Windows but i can't plot to
*.png or *.jpeg files
under Linux (Ubuntu) with the same command.
I'm using:
png(file,width=200,height=200) or jpeg(file,width=200,height=200)
Any help is appreciated
With kind regards
Marcel
--
View this
2005 Nov 21
3
PNG-import into R
Hi there
I'm looking for a function to read PNG-bitmap-images from a file into R.
I only found:
- the pixmap-package which cannot import png or similar formats
- the rimage-package which can only import lossy jpeg-images (the
convertion from png to jpeg modifies the data!)
Is there any possibility to read PNG-files?
Thanks for any help
Dominic Sydler
2006 Nov 22
3
saving graphics in jpeg format
Dear R users,
I need to save a graph in jpeg format. After plotting the graph,
when the graphics window is active, in the File menu, the
Save as / Jpeg / 100% quality correctly saves the graph in jpeg format.
But I would like to know, how could I control the resolution (in dpi)
of the saved jpeg file? I need to produce a jpeg at 1200 dpi.
I have tried also the jpeg function in the package
2007 Apr 02
3
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.
2002 Mar 11
2
gif, jpeg and png image files reader
Hi all,
Although R seems to have jpeg() and png() functions that converts data into
jpeg and png formated files, it
doesn't have functions the other way around.
Does one of R contributed packages have gif, jpeg and png image readers? I
did help.search() but no luck
Regards,
Jonathan
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read