The trick is not to paste expressions but to make an expression of the
pastes:
composite.expression <- expression(paste("f(x | ", alpha, ", ", beta, " )"))
dev.off()
par(mar=c(5,5,1,1)+0.1)
plot(NA,xlim=c(0,1),
ylim=c(0,3),xlab="x",ylab=composite.expression,lwd=3,type="l",cex.lab=1.3)
Charles Annis, P.E.
[EMAIL PROTECTED]
phone: 561-352-9699
eFax: 614-455-3265
http://www.StatisticalEngineering.com
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brian Phillip Weaver
Sent: Monday, June 19, 2006 12:53 PM
To: r-help@stat.math.ethz.ch
Subject: [R] Display Conditional Probabilities on y-label
Hello,
I am trying to display a conditional probability for the y-label on a beta
distribution plot. Here is the code I have been using:
z = expression("f(x|")
g = paste(z,expression(alpha),",",expression(beta),")")
plot(x,y,ylim=c(0,3),xlab="x",ylab=g,lwd=3,type="l",cex.lab=1.3)
The output on the plot is as follows:
f(x|alpha,beta)
This is what I want except have the greek letters for alpha and beta
instead of the words. I have consulted plotmath and other options with no
luck. I appreciate any help and thank you ahead of time.
best,
Brian
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