[R] How to write a Greek letter in a graph?

[Jeremy Baxter]

Catherine

Have a look at the help in text(), i.e. 

help(text)

I think you are looking for something along the lines of:

xyplot(power1+power2 ~ pi0, data=resultb, ylab="Average Power", type="l", 
pch=LETTERS[1:2], lty=c(1:2), main="(a)", xlab=expression(pi[0])) 

i.e. i am assuming you want pi subscript zero. An example of using text would 
be

text(6,10,expression( y==1.5*x+10))


HTH,
Jeremy

On Friday 18 January 2008 10:16:22 pm cathelf wrote:
> Hi,
> Sorry for bothering you again. I have a small question about the graph and
> the following is my code:
>
> xyplot(power1+power2 ~ pi0, data=resultb, ylab="Average
> Power", type="l", pch=LETTERS[1:2], lty=c(1:2), main="(a)")
>
> The name of the X-axis will be “pi0” in the graph.
>
>
> What should I do if I want the name of the X-axis is the
> Greek letter of “pi0”?
>
>
> Thanks a lot!
> Catherine

-- 
Jeremy Baxter, Statistics Department, Rhodes University, South Africa.
Views expressed above, no matter how badly spelt, are my own... I think?