  Hi Michael,

I'm just curious if you know about a list somewhere where I can find the 
number of a specific symbol. What I mean, with your example, is how to 
find that an arrow corresponds to "\255".

Moreover, Josh wanted the arrow to be really big. Is it possible to make 
it bigger? I would be interested too!

Thanks,
Ivan

Le 10/6/2010 11:09, Michael Bedward a écrit :
> Hi Josh,
>
> Try this...
>
> mtext(expression(symbol("\255")), side=1, line=0, at=7)
>
> Michael
>
>
> On 6 October 2010 11:45, Josh B<joshb41@yahoo.com>  wrote:
>> Hi all,
>>
>> I am trying to do something simple, but which is deviling me. I want to add an
>> up-arrow to the x-axis, pointing to a specific location on the axis. I want the
>> arrow to be as large as possible.
>>
>> Here is where I'm at with my code:
>>
>> #this part if from the ?plot example:
>> require(stats)
>> plot(cars)
>> lines(lowess(cars))
>> #I am trying to use mtext to add the arrow... but I don't know how to do it:
>> mtext("?", side = 1, line = 0, at = 7)
>> #that question mark is a place-holder for the arrow. How do I put an up-arrow
>> there instead of the question mark -- as large as possible?
>>
>> Many thanks to all of you in advance.
>> -----------------------------------
>> Josh Banta, Ph.D
>> Center for Genomics and Systems Biology
>> New York University
>> 100 Washington Square East
>> New York, NY 10003
>> Tel: (212) 998-8465
>> http://plantevolutionaryecology.org
>>
>>
>>
>>
>>         [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

-- 
Ivan CALANDRA
PhD Student
University of Hamburg
Biozentrum Grindel und Zoologisches Museum
Abt. Säugetiere
Martin-Luther-King-Platz 3
D-20146 Hamburg, GERMANY
+49(0)40 42838 6231
ivan.calandra@uni-hamburg.de

**********
http://www.for771.uni-bonn.de
http://webapp5.rrz.uni-hamburg.de/mammals/eng/mitarbeiter.php


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