similar to: Mtext doesn't display characters in italic when I use a greek symbol

Hi I am running an R script that creates 100s of graphs, and I need to use the greek CAPITAL letter delta in the mtext() function. I got as far as expression(delta) but this gives me the lowercase version. Can anyone help? I'm using R 2.7 on Windows XP Mick Head of Informatics Institute for Animal Health Compton Berks RG20 7NN 01635 578411

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

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

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

Hi All, So I just joined the list - first off, Markdown is a great format and we're using it in our online community project disCourse: http://discourse.ics.hawaii.edu We're using markdown for our wiki pages, stories, message postings, pretty much everywhere. One markdown policy that doesn't seem to fit intuitively for our users is the fact that embedded underscores leads to

Hi, I have a dataframe "gexp_1" with 115 rows of samples and 27000 columns of gene expression measurements with each column corresponding to one gene. I now have a smaller vector of genes "tp" for which I need to pull out the data form the data frame. # first gene from the list with 16 genes x <- tp[1,] x [1] geneA 16 Levels: geneA, geneB... #unsuccessful gexp_1$x NULL

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

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]

Hi, I have the following data: > Myvalues Gene ES MEF Embryo ESHyp 1 GeneA -0.38509507 0.00 1.6250 1.7039921 2 GeneB 0.06262914 0.00 1.6250 -0.272033 and so on... I want to plot the expression values of GeneA and GeneB in the different cell/embryo/conditions (columns 2:5 above). Now, if I do: >library(ggplot2) > qplot(x=Gene, Embryo, geom =

Hi, Could someone please let me know how to plot greek letters in italic. text(0,14,expression(italic(rho)[italic(f)])) only plots the f in italic and text(37,40,expression(italic(rho))) doesn't plot rho in italic. I have checked demo(plotmath), ?plotmath, FAQ, and the archives 2004-2006 without finding the answer. I'm using R 2.1.1. and Windows XP. Thanks! Tord -- Tord Sn?ll

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

Hi, I need to add on a plot text containing italic Greek characters using the function mtext (i.e. I cannot use Hershey vectors). The characters are nicely displayed when the file is saved as png but not when saved as eps. See code below as example: #postscript('test.eps') png('test.png') plot(1,1, type = 'n') mtext(side = 3, line = 2,

What's the difference between: <em>emphasis</em> and <i>italicized</i> and <strong>strong</strong> and <b>bold</b> It seems to subtle for my browsers. The only "difference" I've been able to find is that according to the O'Reilly book <strong> and <emphasis> are semantic tags, while <b> and <i>

I want to use gamm to generate smoothed trend line for three groups identified by dummy variable genea and geneb. My question is how to add in an interaction term between the time and another dummy variable such as gender? fitm<-gamm(change_gfr~ genea+geneb+s(timea_n,bs="ps")+s(timeb_n,bs="ps")+s(timec_n,bs="ps"),data=mm,random=list(time_n=~1|PID)) -- View this

Colleagues, Using R 2.10.1 in OS X (Snow Leopard), I created JPEG documents that were intended to include italicized text. In the JPEG versions, the italics appear in bold-face. The identical code (except for the call to the device) yields italics in PDF. A minimal example is: PDF version: > pdf("plot.pdf") > plot(1,1) > mtext(bquote(italic(P) < .(0.005))) >

Full_Name: Yan Wong Version: 2.8.1 OS: Mac OS X 10.4 Submission from: (NULL) (78.149.167.246) When printing a plot to and svg file, text intended to be in italics is rendered in bold (svg file viewed using both Safari 3.2.1 and Firefox 2.0.0.9. For example, try viewing the test.svg file generated by svg("test.svg", width=4,4,8) plot.new();

Dear list, I making some box-and-whisker plots in R with vertebrate data. The x axis are species names that must be in italics. I tried with the "axis" function but no luck, and it seems that affects both axes. Any tip? Thanks a lot in Advance. Alej

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

I recently upgraded from 1.2.8 to 2.0.6, I am using Maildir, and Thunderbird is showing the INBOX grayed out and in italics, and does not show new messages in it (it shows messages previously downloaded). This occurs when Thunderbird is restarted (if I upgrade dovecot, TB keeps working fine until I shut it down, and at next startup it greys out the inbox). All the subfolders of INBOX work

Eric's approach seems reasonable to me, and I agree that it's probably not the use of a "for" loop that makes the original version slow. As Eric mentioned, there are lots of unnecessary things happening in the loop. For example, list.files() was called twice inside the loop, which is unnecessary, and will definitely slow the loop down (though probably not by much). Call it