Displaying 20 results from an estimated 1000 matches similar to: "Greek characters in plots"
2008 Aug 07
1
Mtext doesn't display characters in italic when I use a greek symbol
Following on from my previous mail!
plot(1:10,1:10)
mtext("title", side=3, adj=0, font=3, cex=1.5)
This works as expected and puts the font in italics.
tag <- "A)"
suffix <- "genea::"
plot(1:10,1:10)
mtext(bquote(.(tag) ~ Delta * .(suffix)), side=3, adj=0, font=3,
cex=1.5)
Here, the font isn't in italics, it's normal.
I presume this is some
2005 Jan 05
8
Replacing all NA values in a matrix
OK, dumb question, and it is probably in the docs somewhere, but after
12 months working with R and quite a while looking at the docs, I still
don't know (or have forgotten) how to replace all NA values in a matrix
at once with some other value. I can do it column by column using
is.na(), but I can't figure out how to do it for the whole matrix. My
apologies, I am ashamed ;-)
Michael
2004 Nov 16
3
Simple plot() question
Hi
First a simple question to do with plot(). How do I change the x-axis
labels on a plot?
For example, I am plotting each row of a matrix, and I want each row to
be a line on my graph. Simple really. Eg:
plot(sg[1,], type="l")
When I do this, the x-axis is labelled 1:38, as I have 38 columns in my
matrix. When I do:
plot(sg[1,order(sg[1,])], type="l")
Ideally I would
2005 Jan 25
2
Rd problems when converting DVI version
Hi
Running R v2.0 on SuSe linux 8.2.
I'm trying to build a package (which built perfectly on Windows...) on
Linux, and I ran:
R CMD check mypackage
I got:
* checking mypackage-maual.tex ... ERROR
LaTeX errors when creating DVI version
This typically indicates Rd problems
OK, there are no problems with my Rd - I got 3 warnings but they were
all expected, and the whole package builds find
2003 Jul 07
1
Xvfb and R
Hi
I have recently installed and implemented Xvfb (X virtual frame buffer) so that I can create jpegs using R over CGI (SUSE Linux 8.1 and Apache 1.3).
I have noticed that in order to do this, a file (Rplots.ps) is created in my cgi-bin directory everytime a cgi script is run. This could cause problems though as I have a multi-user system where it is possible that two different users will run
2004 Dec 10
4
cbind() and factors.
Hi
I'm seeing some "odd" behaviour with cbind(). My code is:
> cat <- read.table("cogs_category.txt", sep="\t", header=TRUE,
quote=NULL, colClasses="character")
> colnames(cat)
[1] "Code" "Description"
> is.factor(cat$Code)
[1] FALSE
> is.factor(cat$Description)
[1] FALSE
> is.factor(rainbow(nrow(cat)))
[1]
2003 Jun 13
4
Using jpeg() function over cgi
Hi
I have seen a few posts to this list regarding problems accessing the x11() device over cgi - namely, when trying to create a graphic using the jpeg() function, everything is fine from the command line but it won't work over cgi, producing the error:
"Unable to open connection to X11 display"
Has anyone actually solved this particular problem satisfactorily?
Please reply
2004 May 19
7
Help with hclust() and plot()
Hi
When I use plot(hclust(dist..)...)...) etc to create a dendrogram of a
hierarchial cluster analysis, I end up with a vertical tree. What do I
need to do to get a horizontal tree?
Also, my users are used to seeing trees who's leaves all "end" at the
same place (eg. Like in minitab). Is this possible in R?
Thanks
Mick
Michael Watson
Head of Informatics
Institute for Animal
2005 Jan 05
0
AW: Replacing all NA values in a matrix
Replacing the NA?s with eg. 1 :
> a
1 2 3 4
1 20 50 10 80
2 NA 19 NA 49
3 NA 32 NA 61
4 45 101 44 190
a[try(is.na(a)) == TRUE] <- 1
> a
1 2 3 4
1 20 50 10 80
2 1 19 1 49
3 1 32 1 61
4 45 101 44 190
I this can help you,
Matthias
> -----Urspr?ngliche Nachricht-----
> Von: r-help-bounces at stat.math.ethz.ch
> [mailto:r-help-bounces at
2005 May 05
0
Wilcoxon paired signed rank test and continuity correction
Hi
I am applying the wilcoxon paired signed rank test to many sub-groups of
a data frame using by() and wilcox.test, and sometimes the test uses
continuity correction and sometimes it doesn't. What I want to know is:
1) what is continuity correction? The docs say:
correct: a logical indicating whether to apply continuity correction
in the normal approximation for the p-value.
2003 Jul 03
1
General X11 Problems
Hi
You may remember a while ago I was having problems with creating jpegs using R over CGI. I solved this on my LAPTOP (*grins*) by
- executing "xhost +localhost" from the command line
- putting "SetEnv DISPLAY=:0.0" in my httpd.conf (apache)
And all worked well. Now I'm trying to move the whole system onto my shiny new server - and encountering yet more problems
2018 Nov 04
13
[Bug 108651] New: Screen flickering when using compositor with OpenGL backend
https://bugs.freedesktop.org/show_bug.cgi?id=108651
Bug ID: 108651
Summary: Screen flickering when using compositor with OpenGL
backend
Product: Mesa
Version: unspecified
Hardware: All
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component:
2010 Apr 29
2
Cloning very slow?
Yesterday I cloned one of my VMs and, somewhat implausibly, it took
virt-clone something like 8-9 hours to clone the 8Gb disk image...
Copying it from the command line took a mere 6.5 minutes.
I assume this is a bug, and it's not expected to take this long ;-)
This was using virt-clone from python-virtinst-0.500.2-1.fc12.noarch in
the virt-preview repository.
Tom
--
Tom Hughes (tom at
2003 Jul 25
5
R won't connect to the internet on SUSE Linux 8.1
Hi
Thanks once again for your help, I do appreciate it..... however....
Here is what I get with your test.... (under tcsh - i normally use bash, but I will keep everything the same)
users/mwatson> env http_proxy=http://wwwcache.bbsrc.ac.uk:8080/ R
>options(internet.info=0)
>update.packages()
trying URL `http://cran.r-project.org/src/contrib/PACKAGES'
unable to connect to
2010 Oct 13
2
total newbie issue with Cortado player using new java 1.6.0_22
is anybody else having problems with the new java 1.6.0.22 ?
i am tried both cortado-ovt-debug and cortado-ovtk-debug - neither seem to work
anymore once i installed the new java. once i go back to the old java 21
everything works fine.
my jar file downloads for console messages (below) came from:
http://downloads.xiph.org/releases/cortado/cortado-ovtk-debug-0.6.0.jar
i have included
2010 Mar 31
1
nlsList{nlme} control of min and max parameter bounds?
Hi All
I'm analysing growth rates using a gompertz (logistic) curve and am attempting
to fit parameters for all of my study birds using nlsList.
I've been looking for an option in nlsList to set min and max limits for
parameter values during estimation, although I have failed to find any under
'control'. Other users seem to have reported that using control in the port
algorithm
2017 Jun 10
3
[Bug 101372] New: nouveau?/DRI3?: dual monitors unusable without running compton --paint-on-overlay (sometimes)
https://bugs.freedesktop.org/show_bug.cgi?id=101372
Bug ID: 101372
Summary: nouveau?/DRI3?: dual monitors unusable without running
compton --paint-on-overlay (sometimes)
Product: xorg
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: critical
2007 Aug 28
1
subcripts on data frames (PR#9885)
I'm not sure if this is a bug, or if I'm doing something wrong.
=20
=46rom the worms dataframe, which is at in a file called worms.txt at
=20
http://www.imperial.ac.uk/bio/research/crawley/therbook
<http://www.imperial.ac.uk/bio/research/mjcraw/therbook/index.htm>=20
=20
the idea is to extract a subset of the rows, sorted in declining order
of worm density, with only the maximum
2016 May 04
2
[libvirt] Creating a storage volume for raw format file
Hi
I'm trying to create a volume in an existing storage pool using python
by calling createXML() on the pool object.
If the file that is the subject of the new volume exists you get and
error, also if it doesn't exist
I worked out that specifying
<source>
<path>path to copy of file</path>
</source>
works, seemingly by copying the 'source' file to
2019 Jan 21
7
[Bug 109407] New: GTX 1050 fails to initialise acceleration
https://bugs.freedesktop.org/show_bug.cgi?id=109407
Bug ID: 109407
Summary: GTX 1050 fails to initialise acceleration
Product: xorg
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
Assignee: nouveau at