similar to: Paste expression in graph title

Dear all; A simple? question. I'm having a problem with a math expression in the legend of a plot and I haven't found the way to get this to work, so any help will be appreciate. Basically I want to include in the plot is the R-squared and its numerical value, so I tried this: R2c<-0.82879 # R-squared of calibration model plot(1:10,1:10) legend("topleft",

hi, i'm trying to prepend some plain (i.e. unevalutated) text to a typographically evaluated R expression in a legend(...) call. here's a working legend(...) call that is close to what i'd like (where x and y are returned from an lm(...) call): legend("topleft", legend = c(bquote(R^2 == .(summary(x)$r.squared)), bquote(R^2 == .(summary(y)$r.squared))), fill =

I know that this has been revisited over and over, yet I cannot figure out how to solve this case of superscript troubles... I would like the 2 in r2 to be superscript, yet I am pasting text before and after it. I have tried several variations but have not solved this yet, any suggestions? legend (bty =

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:

Hi there, How can I superscript the "2" of "r2 =..." in the legend below? legend(210, 110, paste("r2 = ", format(summary(regression)$adj.r.squared,digits=3), sep="")) I usually use "expression(paste(...", but it won't work this time because "format(summary(..." needs to be evaluated. Thanks in advance! -- View this message in

Dear all, I have a vector of expressions and would like to "paste" some string to it before using it in a plot: vars <- vector("expression", 2) vars[1] <- expression(alpha) vars[2] <- expression(beta) plot(0, 0, main=substitute(bold("Foo" ~~ VAR), list(VAR=vars[2]) )) Although I tried hard, I just can't figure out how to solve this. The title should be

Recent questions about using plotmath have renewed my interest in this question I want to have expressions take values of variables from the environment. I am able to use expressions, and I am able to use paste to put text and values of variables into plots. But the two things just won't work together. Here is some example code that shows what I mean. plot(NA,xlim=c(0,100),ylim=c(0,100))

Hi, all! I'm pretty sure I'm missing something about this. Is there a smart way of typping hat(R)^2 and it's value from a linear regression? I've just found this tricky one: # Sample data x <- sample(1:100,10) y <- 2+3*x+rnorm(10) # Run the regression lm1 <- lm(y~x) # Plotting plot(x,y, main="Linear Regression", col="red")

Dear all, I have a rather complicated problem. I am trying to loop through making graphs, so that the graph-making process is fully automated. For each graph, I'd like to make sure the corresponding title is formatted properly. The titles will be a combination of a gene name and numerical position within the gene. The gene name should be italic-bold, whereas the gene position should be

I am trying to create a plot title in R with substitution by a numeric variable (Figure number N) within the text which is bold and has a subcripted part as well. Here is what I have: title <- expression(bold(paste("Figure ", N, ": Plot ", C[max], " versus CrCL"))) plot(1, main="") # Simple plot for testing N <- 5 mtext(title, line=3, font=2,

What I want to do is put the arguments I supply to a function into the title of a plot Say I'm calling func.1 func.1(a=4,b=4) plot(....,..., title("a=4, b=4")) If I'm calling func.1 with different arguments, I want the plot title to reflect that. A small detail is that func.1 might have an argument with a default like c=a+b. I tried using expression but couldn't get it to

Hi everyone, I am plotting a boxplot with main title as main = bquote(paste(.(ts.ind[s]), ": ", bar(zeta), " Boxplot from 2001 to 2009", sep = "")) but it doesn't work.  The program said they cannot find the function "bar".  Does anyone know how to do it correctly?  Thanks. tin [[alternative HTML version deleted]]

Hi, How can I get the '2+' into superscript in the following title: '[Ca2+]i onsets' I tried the command below, but it doesn't work. What am I missing? hist(X, main=expression(([Ca*]i^2+) 'onsets'), xlab = 'sec') -- View this message in context: http://r.789695.n4.nabble.com/superscript-characters-in-title-with-tp3006981p3006981.html Sent from the R

Hi, I need to plot the beta as the symbol, followed by the index 3 as the title of a graph. This code works> main= bquote(paste("Results for ", beta ==.(b1)) but I also need the index 3. I tried (simplified): >plot(x,y, main= bquote(paste("Results for ", beta, "3", ==.(b1)))) and a few other versions, but I can not get it to run properly. Any help would

Is it possible to use "paste" to write out an expression and evaluate it? Suppose I want to add two vectors X1 and X2, defined as follows: X1 <- 1:6 X2 <- 6:1 If I write the following it looks like what I want but is a character: noquote(paste(paste("X", 1, sep = ""), paste("X", 2, sep = ""), sep = "+")) Is there a way to tell R

Hello This is a problem I encountered repeatedly and I found no answer that made me really happy. I hope it is not too trivial. I would like to give the concentration of a substance in a plot title: 5 ug/ml substance the '5' would be a variable and the ug should be micrograms (with greek letter mu). It is the mu that causes the problems for me. I failed using various combinations of

Dear R-users, I am trying to use the grid.text and expression functions to display several character strings and plotmath text on a viewport. Some strings can include a variable portion (PI.limits in the following example), which I thought could be implemented by combining the bquote and the expression functions. Unfortunately, my expressions do not seem to be evaluated. I would greatly

Hi all! I've written a handy script that uses a for loop to allow me to generate a large number of figures and statistical outputs for a large dataset. I am using indexing to retrieve a species name for the title of my graphs- which worked fine. However, I need to italicize these species names. I originally used the paste function, and had no problems with indexing: *main=paste("Yield

I'm trying to annotate a density plot and I would like to have R calculate the standard deviation and place it in the plot next to the standard deviation symbol "sigma". I can successfully use the text command to paste "StDev =",round(sd(Data),digits=3)) on the plot. However, I have trouble when I want to replace "StDev" with the Greek symbol sigma (See code

Hello useRs, I'm trying to put italics and regular font into a title and am having some trouble. The title I would like is " /Q. marilandica/ Volume ". If I use main=bquote(italic( "Q. marilandica ", " volume")) I get just " Q. marilandica " in italics in the title. If i use main=bquote(italic( "Q. marilandica ,) volume") I get "