similar to: bquote question

Hello R-help List I am writing some R scripts to create graphs of water quality trends that will be called by a web service running R. The axis titles will need to change as the input data (ie. water quality variable) changes according to a user's choice made via a web page. The way I am currently passing call-specific parameters to the R script is via a text file created on the fly by the

I'm using R-2.6.2 on Fedora Linux 9. I've been experimenting with plotmath. I wish it were easier to combine expressions in plotmath with values from the R program itself. There are two parameters in the following example, the mean "mymean" and standard deviation "mystd". I am able to use bquote to write elements into the graph title like mu = mymean and R will

Hi all, I have written a note near each of my graphs using mtext. mtext(text,side=1,line=4,cex=0.5,adj=0) Then I have exported the graphs as a PDF file. pdf(file=name,paper='a4',width=7.27,height=10.69) The mtext appears OK in R. But it looks like it is bolded in the PDF file. http://n4.nabble.com/file/n2016971/graph.png I am not sure if this is actually my monitor/computer's

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))) >

I'm trying to annotate a density plot and I'm using bquote to paste the sigma symbol next to the numeric text of the standard deviation calculation that I am performing. I have been able to successfully turn the sigma symbol and numeric output the color blue, but when I try to change the font of the text to bold, R doesn't seem to recognize the "font=" command in the same way

Colleagues, I am encountering difficulty adding formatted text to a graphic. Specifically, I want to add a superscript in the middle of a text string but I would like to format the text string on the fly. The commands: plot(1,1) ARG <- bquote('TEXT'^'\u00ae') mtext(ARG, line=-2, side=1) yield the desired output. However, my goal is to paste together a string, then pass

Dear R gurus, I want to wrap labels that are too long for a plot. I have looked at strsplit(), substr(), nchar(), and strwrap(). I think it's some combination but I'm having difficulty trying to figure out the right combo. I think I need to create some new matrix containing the labels already split, though I'm not sure if maybe there is a quick and dirty way to address this

Is there a way to display something like the quadratic equation, i.e. with a numerator and demonator on a plot? I think there is a way to create the equation in Latex, but wasn't sure if this format would translate to plotting. \begin{equation} ? x = \frac{b +/- sqrt(b^2 - 4*a*c)}{2*a} \end{equation} ? My searched turned up the following:

Dear R users, Two questions: 1) Is there a way to simplify the mtext() line below ? beta=c(1,-1) m=5 plot(1) mtext( bquote(paste( beta == .(paste( "(", paste(beta, collapse=", "), ")" )) )), outer=TRUE,line=-3) 2) How do I get the embedded carriage return "\n" below to work, i.e for the text that follows it to appear on the next line? beta=c(1,-1) m=5

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

--- On Fri, 6/11/09, tlumley at u.washington.edu <tlumley at u.washington.edu> wrote: > From: tlumley at u.washington.edu <tlumley at u.washington.edu> > Subject: Re: [Rd] A fix that for 'bquote' that may work? (PR#14031) > To: suharto_anggono at yahoo.com > Cc: r-devel at stat.math.ethz.ch, R-bugs at r-project.org > Date: Friday, 6 November, 2009, 11:42 PM >

Full_Name: Suharto Anggono Version: 2.8.1 OS: Windows Submission from: (NULL) (125.165.81.124) Sorry for repost. There is already PR#9602, but the problem is still there. There is also a post "Re: [R] using bquote to construct function" in R-help 2008-10-02. This illustrates the problem. C:\Program Files\R\R-2.8.1\bin>R --vanilla R version 2.8.1 (2008-12-22) Copyright (C) 2008

Hi, I want to put text on a plot containing something like: a = b^2 = <squared numeric value of b> using bquote. Example: mu = 5 plot(1:10,1:10) text(2,8, bquote(delta == mu^2)) # This works text(2.5,8, bquote(phantom(0) == .(mu^2))) # but is unpredictable text(2,8, bquote(delta == mu^2 == .(mu^2))) # This doesn't work The last text function returns the error:

R 4.2.3 OS X Colleagues This should be easy -- but not for me. I want to plot text similar to this: N ? XX: YY where XX can be either 1 or 50 and YY is an integer I envision that there would be two solutions: UNICODE: If I can generate "?" via unicode, the problem is solved: mtext(side=3, paste0("N ", UNICODE, " ", XX, ": ", YY)) PLOTMATH:

Hi Jan, In the lisp code you provide the operators are parsed as simple symbols in a pairlist. In the R snippet, they are parsed as left-associative binary operators of equal precedence. If you unquote a call in the right-hand side, you're artificially bypassing the left-associativity of these operators. To achieve what you're looking for in a general way, you'll need a more precise

My routine (below) works OK but misbehaves if the on-screen plot is made wider using the mouse. The problem is caused by using par("usr")[1] - 0.07 * (par("usr")[2] - par("usr")[1]) to locate two items on the y-axis. The rest of the labeling is controlled by the "line=0" parameter setting. Of course resizing changes the absolute plot width, and

Hi, R-help, (sessionInfo at the end) I'm trying to construct a function using bquote and running into a strange error message. As an example, what I would like to do is this: z <- 2 eval(bquote(function(x, y) { x^.(z) + y }))(2, 3) However, I get the following: Error in eval(expr, envir, enclos) : invalid formal argument list for "function" However, if I change the

Good Morning, I have a graph with groups of variables. I have include the group names as variables so that I can have them positioned correctly. Unfortunately this means that the group names have to follow all of the same rules as the variables within the groups. I would rather have those group names left justified and bolded. I know that I can do this in an mtext() function using font=2

?bquote says it returns an expression but, in fact, it typically (though not always) returns a call object: > class(bquote(a+b)) [1] "call" > class(bquote(1)) [1] "numeric"

Hello, How would i use bquote to create names for a list. e.g. to create list(a=10) bquote(list(.(X)=10), list(X="a")) does not work. The best i could come up with is bquote({ a=list(10);names(a)=.(X); a}, list(X="a")) which is quite ugly. Is there an elegant way to solve this? Regards Saptarshi [[alternative HTML version deleted]]