similar to: unexpected behaviour of expression(sum())

Hi, I'm trying to understand whether the use of substitute() is appropriate/documented for plotmath annotation. The following two calls give the same results: > plot(1:10, main = expression(alpha == 1)) > do.call(plot, list(1:10, main = expression(alpha == 1))) But not these two: > plot(1:10, main = substitute(alpha == a, list(a = 2))) > do.call(plot, list(1:10, main =

Hello! plot(1:10,main=expression(1 <= "m" <= 5)) The above command works perfectly in R 1.9.1 but returns an error in R 2.0.1 This is documented in NEWS for R 2.0.0 (or ONEWS in R 2.0.1) and it is said: o R no longer accepts associative use of relational operators. That is, 3 < 2 < 1 (which used to evalute as TRUE!) now causes a syntax error. If this

Hi, a few days back I had asked for help on a Qt device package. Thanks to hints from Duncan TL and Thomas Friedrichsmeier, I now have something more or less functional. For those interested, It can be downloaded from http://dsarkar.fhcrc.org/R/R-Qt.html I have a couple of related questions. First, dev.interactive(), used in example() and many demo()-s to decide if the current device is

In this connection, note the following > a4 <- 4 > plotThis <- bquote(alpha==.(a), list(a=a4)) > do.call(plot, list(1:10, main=do.call(expression, c(plotThis)))) > do.call(plot, list(1:10, main=do.call(expression, plotThis))) Error in do.call(expression, plotThis) : second argument must be a list > ## Whereas plotThis has class "call", c(plotThis) has class

Hi, I know S manuals used to warn against using the same names for a variable and a function, but I have never seen that cause problems in R, so I usually don't pay much attention to it. Which is why the following behaviour came as a surprise: > bar <- function() 1 > foo <- function(bar = bar()) { + bar + } > foo(9) [1] 9 > foo() Error in foo() : recursive default

Full_Name: Wolfgang Huber Version: R-2.0.1 OS: HP-UX B.11.23 ia64 Submission from: (NULL) (81.104.215.6) Hi, I hope I am not missing something basic... I am using a somewhat exotic compiler and OS, but if I understand what I am seeing the problem is more general: In src/main/plotmath.c, the following function is defined /* Thickness of rules */ static double RuleThickness() { return

Hello, I have a problem with the plotmath facility and haven't found any solution in the FAQ and Online-Help. I am trying to incorporate the value of a variable in an expression for an axis with plotmath. Considering having > gamma <- 10 I'd like to have a plot with > plot( .... , xlab=expression(gamma==10)) but depending on the true value of the variable. How can I

Readers, According to the documentation for the function 'plotmath' there is no apparent possibility to add the percent sign (%) to a plot function, e.g. plot(a[,1]~b[,2],ylab=expression(x~%),xlab=expression(z)) How to achieve this please? yours, rhelp at conference.jabber.org r251 mandriva2009

Folks: delta <- 1:5 I would like to put 5 separate lines of text of the form "10 %+-% delta[i]" into a lattice key legend, where ""%+-%" is the plotmath plus/minus symbol and delta[i] is the ith value of delta. The construct: lapply(delta,function(d)bquote(10%+-%.(d))) appears to produce a list of expressions of the correct form, and, indeed, if I assign the above

I would like to use greek "tau" as a symbol of variable to integrate over in plotmath expression(integral(f(tau)*dtau, 0,t)) but nothing seems to work. I tried d{\tau}, d\tau, etc., without any success Is it possible? How can I accomplish this? Best regards, Ryszard -------------------------------------------------------------------------- Confidentiality Notice: This message is

Hello, I've been trying to plot a subscript in a text formula using plotmath but I haven't been able to do so. In my example below I would like the text label to show X[min] = 10.1 +/- 5.5 Here is the code: ll <- c(x=10.1, sde=5.5) plot(1:10) text(x=9, y=2, pos=2, expression(paste(X[min], "=", paste(ll, collapse="+/-")))) This works fine up to the inner paste

Disclaimer: I have read plotmath, but maybe it's too late today: How do I get the two labels to be the same: plot.new() lab =expression(paste("Estimated ", t[50]," from tgv")) text(0.5,0.5,lab) # Should look the same as above. I could not get the substitute right: what = "tgv" lab =expression(paste("Estimated ", t[50]," from ",what))

Hi. The following statement works fine in R-win 1.8.0, but yields a syntax error in R-win 2.0.1 (and possibly in other versions after 1.8.0): plot(c(1,2),main=expression(a==b==c)) I note that the following workaround executes successfully in both versions of R... plot(c(1,2),main=expression(a*"="*b*"="*c)) ...but I don't really understand

OK. Sorry to have bothered you. It may well have been the namespace issue, a subtlety that I would have been unaware of. Thanks. I've cc'ed this to r-bugs in case there is anything they wish to do about it. -- Bert Gunter > -----Original Message----- > From: Deepayan Sarkar [mailto:deepayan@stat.wisc.edu] > Sent: Wednesday, December 15, 2004 12:05 PM > To: Berton Gunter

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

I want to write something like (LaTeX style) b_{norm}=\frac{F\prime(0)}{R\prime(0)} how do I add the "prime" (first derivative) to a R-plot? The help of "plotmath" just talks about "partialdiff". Can you complete this command? text( 30,0.05,labels=expression(b[plain("norm")]==frac(F(0),R(0))) ) Thanks, Thomas

> On Jul 30, 2017, at 8:25 AM, Uwe Ligges <ligges at statistik.tu-dortmund.de> wrote: > > > > On 30.07.2017 17:22, Milan Cisty wrote: >> Dear all, >> I appreciate suggestions for following problem. I wrote to RStudio: >> plot(c(1,20),c(1,20), xlab = expression(paste(alfa))) >> or the same happen when I wrote: >> plot(c(1,20),c(1,20), xlab =

I want to put the "plus or minus" symbol into a character variable, so that this can be turned into a factor and be displayed in the "strip" of a faceted ggplot2 plot. A very nice solution, thanks to Professor Ripley's post of Nov 16, 2008; 3:13pm, visible at http://r.789695.n4.nabble.com/Symbols-to-use-in-text-td874239.html and subsequently

Let me summarize the bug reported by Ulf Martin on R-help with the same subject line. The code plot(1:10) text(1, 9, expression(F == bgroup("{", x, ""))) results in greek letters, which is not expected here. That happens if the user tries to set only a left delimeter, the same with: text(2, 8, expression(F == bgroup("{", x, "."))) or

Hello everyone, I want to define a function that receives the name of two variables (may include Greek letters and subscripts) and uses them into the title of a plot. My best attempt is the following: myplot <- function(var1, var2) { v=paste(var1,"==1 & ",var2,"==2"); plot(1:10, main=parse(,,v)) } But when I call it with something like myplot("Q[i]",