Displaying 20 results from an estimated 20000 matches similar to: "Printing to jpeg (dev.print)"
2004 May 27
2
Is it possible to read jpeg files into R?
Hi Helpers,
Does anyone know how to read jpeg, bmp or png files into R?
I have some photos of brain scans and I want to quantify
some aspects of their size. I might be able to do this
with the 'locator' function, if I could figure out how
to read the files in and make them into an image that
I can display on the R Windows device. I have experimented
with readBin, using a simple
2009 Mar 03
1
dotplot() lattice charts return blank image (jpeg, bmp, png) file
Thanks in advance for the help. Trying to run a basic dotplot in lattice from R command line. When the file is created, in Fedora, it is blank image (jpeg, bmp, png). Image produces correctly in Windows environment. Libraries lattice and latticeExtra are loaded. Code:
-----------------
jpeg(file = "/tmp/img/temp31.jpg", width = 768, height=768)
xy <- dotplot(1:10)
print(xy)
2002 Aug 20
1
Jpeg files dynamically but multiple figures (e.g xyplot (grid/lattice))...
Dear List,
Some days ago, it was posted in this list a question regarding "How to generate graphics (jpeg) files dynamically". Although it was responded, there is a particular case in which I do not find the rigth solution.
My question also goes in the same direction but for the particular case of generating jpeg/bmp or png files when using xyplot (grid/lattice libraries) and the
2005 May 13
1
DEV2bitmap: jpeg with res=400 not enough for CORELDRAW poster A0
Dear all,
When saving a plot with the dev2bitmap command:
name <- c("test.jpeg")
dev2bitmap(name,type="jpeg",height=8,width=13,res=400)
Everything seems to be ok... After importing this picture in CORELDRAW (for
a poster A0) format the resolution and colors are not optimal.
How can I save pictures (colors/resolution) optimally for import into
CorelDraw for an
2004 May 27
2
no transparent background in bmp
I've been attempting to export a graphics file of my lattice plots and no
matter what color I use for the bg= argument in the bmp/jpeg/png function,
the background is grey.
bmp(filename = "c:/my_paper/resids.bmp", width=1024, height=1024,
pointsize=10, bg="transparent")
# these are lattice plots. plot them in a 3x2 matrix
print( hgqqplot, position=c(0.0, 0.66, 0.5, 1.0 ),
2002 Jan 29
3
lattice dotplot and graphic devices on Windows
I am using R1.4.0 on WindowsNT (the precompiled version from Brian Ripley's
website) and the lattice package (version details are at the end of this
message).
After producing a lattice dotplot, I want to insert the graph into a
MicrosoftWord document. With "ordinary" R-graphics, I have done this
successfully by copying the graph as a metafile to the clipboard and pasting
this into my
2008 Feb 03
3
Drawing a loess line
Dear all,
To draw a lowess line on a plot was a piece of cake; to draw a loess
line, however, seems not that easy. Is the loess plotting implemented
at all in relation to the loess function, or do I have to look in
add-on packages?
Thanks,
Marcin
2009 Oct 05
2
Loop function/comparison operator problem
Hi There,
I have created the following function
format<- function(){
repeat {
form<-readline(paste("\nIn what format do you want to save these
plots?\nChoose from: wmf, emf, png, jpg, jpeg, bmp, tif, tiff, ps, eps, or
pdf.\nNote: eps is the suggested format for publication quality plots.\nPlot
format --> "));
cat("\nI'm sorry, I don't know what that format
2004 Dec 30
2
coplot with png: disappearing grid lines
Dear useRs,
When I use coplot() and output to png/jpeg/bmp, the grid lines from
the scatter plots disappear. If I output to pdf() the grid lines are
there, however I can't use it - I have many points, and the resulting
PDF file is large and very slow to open and scroll through. (By the
way, if I click File-Save As-png/jpeg/bmp from Rgui.exe, the grid
lines are preserved - but I need to use
2007 Dec 06
3
Vertical text in a plot
Hi,
Consider this simple plot:
> plot(1:25,runif(25,0,1),ylab="First Y-axis label",xaxt="n")
I want to add an additional axis as
> axis(4,at=seq(0.2,1,.2), labels=1:5)
I have no idea how to add now the title of the new axis as "Second
Y-axis label". I want this text to be vertically directed from bottom
to top. I can't find the function in text() to write
2008 Feb 15
2
Controling width of boxes in boxplots
Hi,
I want to add boxplots to a scatterplot:
plot(x,y, xlim=c(80,120),ylim=c(80,120))
boxplot(y,add=TRUE,at=118)
boxplot(x,add=TRUE,at=118,horizontal=TRUE)
How can I control the width of the boxes (say, I'd like them to be of
width 3 in the variables' scales). I've tried the "width" parameter
but failed.
Thanks in advance,
Marcin
2004 Aug 16
2
(no subject)
Hi there I teach a statistics class with R ( the first time ever with R)
and some of my students have windows at home and they want to be able to
graphs tjhey make in our college ( that only has Linux) and oopen with
windows, I think the best wya would be saving it as a JPEG file but I
don't know how to do it ! I only know how to do it with EPS
dev.copy2eps(file="bla.eps")
how
2003 Apr 14
6
Charts to M$Word - what's the best format
Hi
I'm exporting some graphs from R to M$Word. I used png, jpeg and bmp and
the quality is poor when comparing with the postscript.
What is the best way to export a chart to be included in a M$Word file ?
Thanks
EJ
2003 Sep 10
6
insert eps into microsft word
it seems that word can not read encapsupalted postscripts generated by R
I used this command
postscript("output.eps",horizontal=F,onefile=TRUE)
since onefile=TRUE produces an encapsualted postscript
actually what I'm trying to do is to insert the postsript file into a
word document
since other formats like jpeg and bmp do not reproduce the same quality
like postscript
formats
any
2011 Apr 13
1
print to .jpeg
Evening folks,
I'm trying to print a series of graphs to .jpeg using a variable as the
title, but run into the difficultly that I can't find a way to append the
file extension to the .jpeg (in this case extensionless!) files.
Example:
----
species.name="CussoniaHolstii"
dia<-10:100
biomass = -21.4863 + 0.5797 * (dia ^ 2)
biomass
jpeg(species.name)
plot (biomass,
2005 Feb 08
1
Windows BMPs: Why grey background? How to display BMP in R?
"white" is supposed to be the default background for BMPs (according to
?bmp) but it doesn't work
> bmp("test.bmp", bg="white")
> plot(0)
> dev.off()
# results in grey background
# This seems to be a good enough workaround for now.
> bmp("test.bmp")
> par(bg="white")
> plot(0)
> dev.off()
# background is white
2011 Sep 05
1
capturing a figure to PDF or Image
Hello,
I've been using jpeg(), bmp() and pdf() to capture plots.
I've used the parameter "at" in a plot, to define the tickmarks.
It works fine on screen, but when I try to print it to a file, it gives a
warning:
"at" is not a graphical parameter
and prints an empty figure. Can you help?
Thanks,
Eran.
[[alternative HTML version deleted]]
2009 Apr 09
1
reading an image and adding a legend
Hi all,
I would like to
1. Read in an arcmap image into R (I can export pretty much any type of image jpeg, bitmap etc from arcmap)
2. Use R to create a nice colour legend in the plot
First of all, Is this possible?
So far I'm stuck on point 1. I have tried read.pnm() from pixmap and read.jpeg() from rgl.
the pnm example provided works fine
x <-
2000 Jul 18
5
X11 & dev2bitmap
Hi,
I am trying to put some graphics I have generated from R on a
webpage using dev2bitmap to create a bitmap, .BMP, file.
When I look at my notes from 2 or 3 months ago I was successfully able to
put the ACTIVE device plot result into a bitmap file using a command such
as:
dev2bitmap("InsectSpray.BMP")
Job done!
Now when I try the same command, I get the following:
>
2009 Aug 01
3
Transparency and trellis device
Dear R-users,
I am trying to produce trellis (png, or jpeg) graphs with transparent background, but I cannot manage to make that happen. I tried to play around with themes but to no avail. Any advise on the following example will be greatly appreciated:
Thank you
Sebastien
####
library(lattice)
df <- data.frame(a=rep(1:4,4), b=rep(1:4,4), c=rep(1:4,each=4))
settings <- standard.theme()