Displaying 20 results from an estimated 10000 matches similar to: "jpeg and pixels"
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
2014 Jan 14
1
Determining the resolution of a screen device
Dear all,
I am trying to find a way to reliably and programmatically establish the
resolution (i.e. DPI or equivalent) of an on-screen device. It seemed to me
that
dev.new(width=1, height=1)
dpi <- dev.size("px")
would do the trick, but the result does not seem to be correct, at least on
OS X 10.9.1 using the "quartz" device. Specifically, the window that
appears is 1
2010 Aug 29
3
Saving plot to tiff, with high resolution for publication ?
Hello all.
A Journal we are sending an article to is asking for the following:
To ensure the best reproduction quality of your figures we would appreciate
high resolution files. All figures should preferably be in TIFF or EPS
format... and should have the following resolution: Graph: 800 - 1200 DPI
Photo: 400 - 800 DPI
Color (only CMYK): 300 - 400 DPI (DPI = dots per inch)
Since I am sending
2007 Nov 19
2
Using windows() and jpeg()
Hello,
I have the following question, which I haven't been able to resolve after days of trying. I used to save my plots as jpegs using the savePlot command. However, that seems to result in lost resolution. So now I'm trying to use the jpeg( ) function, but am having trouble because it seems to be incompatible with the windows (width=, height=) command. It's important for me to
2001 Oct 09
2
JPEG from graphs problem
Dear R People:
I am using R version 1.3.1 for Windows.
I produce a graph, and save it as a JPEG file.
Then, when I try to look at it via the Windows Explorer,
I get an error message from the Microsoft Photo program
of an Unknown File format.
What am I doing wrong, please?
Thanks in advance.
Sincerely,
Erin Hodgess
Assoc. Professor
Dept. of Computer and Mathematical Sciences
University of
2009 Mar 23
2
how to save a plot in a given size in inches or centimeters
Hi there !
I'm ploting graphics and I'd like to save them as a .jpeg file for example,
but with a given size (in inches or cm).
I tryed the function windows() but I think it just changes the size of the
window and not the size of the graph that you're saving.
Then I tryed with the function par(din=(width=... height=...) ) but I guess
it's protected and I can't change the
2008 Jan 31
3
X11 device distortion (PR#10666)
Full_Name: Thomas Zumbrunn
Version: 2.6.1
OS: GNU/Linux (openSuse 10.3 2.6.22.13-0.3-default)
Submission from: (NULL) (131.152.125.199)
With my particular X11 settings, the width to height ratio of the x11 device is
distorted, with the width being half that of the height. This results in wrongly
proportioned plots, wrongly positioned text etc.
Other devices are not affected.
I already asked
2010 Mar 12
1
Print density of 600 dpi for a plot
I have to create a plot with a print density of 600 dpi . Within R,
is there a way to determine the print density of a plot?
Any assistance is much appreciated,
regards
Bob
2009 May 03
7
running R on netbooks/minis?
Dear R People:
Is it possible to run R on a netbook/mini, please?
Thanks,
Erin
--
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com
2008 Mar 30
4
Wine fonts messed up
I started using wine and used it to play return to Castle Wolfenstein which worked great. I installed Adobe Acrofat 7 Professional and now all of the wines menus are small and unreadable. Like this:
[Image: http://img249.imageshack.us/img249/1958/winescreende9.png ]
By lsearcey (http://profile.imageshack.us/user/lsearcey) at 2008-03-29
Any ideas on how to fix this? I tried uninstalling Adobe
2008 Jun 02
2
High resolution figures for a paper?
Dear Rusers,
My manuscript has been conditionally accepted recently. The problem to
generate the high resolution figures in R for the manuscript cannot be
solved by me.
The journal editor ask me to generate the figures with a minimum resolution
of 500 dpi. I have tried the *menu-driven method* to save the figures as
JPEG (100% printed quality), but the results seem not to be very good. I
have
2009 Aug 08
2
configure issue
Dear R People:
I am installing R from source into Ubuntu Jaunty Jackalope. (R-2.9.1)
When I do the configure, I get the following:
R is now configured for i686-pc-linux-gnu
Source directory: .
Installation directory: /usr/local
C compiler: gcc -std=gnu99 -g -O2
Fortran 77 compiler: gfortran -g -O2
C++ compiler: g++ -g -O2
Fortran
2011 Aug 14
1
compiling r from source on Windows 7 (64 bit)
Dear R People:
Hope you're having a nice Saturday.
I'm trying to compile R-2.13.1 from source on Windows 7 (64 bit).
I've been able to compile on a 32 bit without any problems.
I changed my BINPREF64, WIN, DEFS_W64 in MkRules.local and did the
usual stuff with the jpeg, etc.
But things are jogging along and I get the following:
Makefile.win:28: ../../../../etc/x64/Makeconf: No
2013 Jan 09
1
R2html and Blackboard LMS : solved
Everything is ok on Firefox, IE, and iPad.
Thanks,
Erin
On Tue, Jan 8, 2013 at 7:58 PM, Erin Hodgess <erinm.hodgess at gmail.com> wrote:
> Dear R People:
>
> Has anyone used R2HTML in web files that were on the Blackboard LMS, please?
>
> I'm starting to do these but wanted to know if there were any
> potential pitfalls.
>
> Thanks,
> Erin
>
>
> --
2006 Apr 11
1
Graphics device size
Dear All,
When working with composite plots many times I have to manually adjust the
graphics display window size to get the best results (in Windows XP). I can
then find the size of the adjusted window in inches using par("din").
Now I would like to export the adjusted graphs as png's and have them look
as close to the original display as possible. The problem is that the png
2017 Aug 17
1
really dumb question with building/creating a new package.
Thank you!
On Thu, Aug 17, 2017 at 4:55 PM, Bert Gunter <bgunter.4567 at gmail.com> wrote:
> r-package-devel is probably a better place to post this, especially if
> you do not get a satisfactory reply here. This list is about R
> programming, as you presumably know; your query is not.
>
> Cheers,
> Bert
>
>
> Bert Gunter
>
> "The trouble with having
2017 Dec 21
3
Building R from source with the PGI compiler
Hello
I would like to build R from source and use the PGI compiler, rather than
the GCC compiler.
I saw the instructions for the Intel compiler in the R Installation Manual,
but I didn't see the PGI. I tried a few times without instructions, but
without success.
Any suggestions would be most welcome. Also, I hope this is the right
group for the question.
Sincerely,
Erin
--
Erin
2010 Jun 21
3
tables
Dear R People:
I have generated the following table:
> table(zza$DEATH,zza$GENDER)
F M
2009-04-21 0 1
2009-04-22 4 2
2009-04-24 6 0
2009-04-25 1 3
2009-04-26 2 0
2009-04-28 3 0
2009-04-29 2 2
However, instead of total counts in the F and M columns, I would like percents.
How would I do this, please?
thanks,
Erin
--
Erin
2008 Oct 29
6
substring/strsplit question
Dear R People:
Here is a toy example:
> x <- c("2E","5W","12H")
> substr(x,2,2)
[1] "E" "W" "2"
>
Sometimes x has 3 elements, sometimes 2. I want to extract the last
element, and then extract the other 1 or 2 elements.
How can I do this, please?
TIA,
Sincerely,
Erin
--
Erin Hodgess
Associate Professor
Department of
2011 Mar 07
4
attr question
Dear R People:
When I want to produce a small sample confidence interval using
t.test, I get the following:
> t.test(buzz$var1, conf.level=.98)$conf.int
[1] 2.239337 4.260663
attr(,"conf.level")
[1] 0.98
How do I keep the attr statement from printing, please? I'm sure it's
something really simple.
Thanks,
Sincerely,
Erin
--
Erin Hodgess
Associate Professor
Department