[R] expression(alpha) in legend()

[Tord Snall]

Dear Peter Dalgaard, Uwe Ligges, Dennis J. Murphy and Paulo Ribeiro,

Thanks for you reply to my question!

I tried myself for two hours yeaterday before I wrote and then went home.


Sincerely,
Tord

>
>
>Tord Snall wrote:
>
>> Dear all,
>> I try to plot include expression(alpha) in a legend():
>> 
>> x<-  seq(0,150)
>> par(mfrow=c(1,1))
>> matplot(x, outer(x, c(0.001, 0.01, 0.05, 0.1, 0.5),
>> function(x, k) exp(-k*x)), type="l", lty=1:5, col=1, lwd=3, ylim=c(0,1), 
>> xlim=c(0,170), ylab="", xlab="Distance (m)")
>> 
>> legend(110, 0.8 , c(expression(alpha), "=
0.001","alpha=0.01","alpha=0.05", 
>> "alpha=0.1", "alpha=0.5"), lty=c(1,2,3,4,5), lwd=3, col=1,merge=T)
>> 
>> I want to replace the text "alpha" with the alpha symbol.
>
>
>
>Try
>
>   legend(110, 0.8 , c(
>	expression(alpha == 0.001),
>	expression(alpha == 0.01),
>	expression(alpha == 0.05),
>	expression(alpha == 0.1),
>	expression(alpha == 0.5)
>   ), lty=1:5, lwd=3, col=1, merge=TRUE)
>
>
>Uwe
>
>

-----------------------------------------------------------------------
Tord Snäll
Avd. f växtekologi, Evolutionsbiologiskt centrum, Uppsala universitet
Dept. of Plant Ecology, Evolutionary Biology Centre, Uppsala University
Villavägen 14			
SE-752 36 Uppsala, Sweden
Tel: 018-471 28 82 (int +46 18 471 28 82) (work)
Tel: 018-25 71 33 (int +46 18 25 71 33) (home)
Fax: 018-55 34 19 (int +46 18 55 34 19) (work)
E-mail: Tord.Snall at ebc.uu.se
http://www.vaxtbio.uu.se/resfold/snall.htm
------------------------------------------------------------------------

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._