Re: Greek letters in plot legend

[Ben Abbott]

On Sep 7, 2009, at 11:33 AM, Xin Dong wrote:

> Hi all,
>
> I need Greek letters in plot legend. I use the command:
> legend("\eta=5", "\eta=10", "\eta=15", "\eta=20", "location",  
> "southwest");
>
> However, octave cannot parse "\eta". The interesting thing is if I  
> use "\alpha" or "\theta", it can be successfully displayed. I tried  
> it on Octave 3.0.1 on Unbuntu 9.04 and Octave 3.2.2 on Mac OS X,  
> both have the same problem.
>
> Can anyone give some advice?
>
> Thanks,
> Xin


See this page ..

        http://www.gnu.org/software/octave/doc/interpreter/Strings.html

The backslash is being interpreted as an escape sequence. What you  
need to correct it is ...

	legend("\\eta=5", "\\eta=10", "\\eta=15", "\\eta=20", "location",  
"southwest");

... or replace the double-quotes with single-quotes ...

	legend('\eta=5', '\eta=10', '\eta=15', '\eta=20', "location",  
"southwest");

Ben