R help - Jun 2008 - how to write symbol (nabla) in R graph

Dear colleagues,

 

Can anyone of you tell me how to write a "nabla" symbol in an R graph?

 

Thanks in advance,

 

Nuno 

______________________________________________ 

Centro de Oceanografia - IO-FCUL, Portugal

Center for Quantitative Fisheries Ecology - ODU, USA

 

 


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You can use the 'symbol' element in an expression. For example

plot(1:5)

text(2,3,expression(symbol("\xD1")))

S.
>>> "Nuno Prista" <nmprista at fc.ul.pt> 06/19/08 9:55
PM >>>
 

Dear colleagues,

 

Can anyone of you tell me how to write a "nabla" symbol in an R graph?

 

Thanks in advance,

 

Nuno 

______________________________________________ 

Centro de Oceanografia - IO-FCUL, Portugal

Center for Quantitative Fisheries Ecology - ODU, USA

 

 


	[[alternative HTML version deleted]]

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Nuno Prista <nmprista <at> fc.ul.pt> writes:
> 
> Can anyone of you tell me how to write a "nabla" symbol in an R
graph?
> 

I have not tested it, but according to

http://www.gnu.org/software/plotutils/manual/html_chapter/plotutils_10.html


nabla is Unicode [0321]

Check documentation on plothmath how to use it.

Note: the documents cited in plotmath are huge, and it would be nice to have
something like the gnu-reference I google for a short list.

Dieter