Hi Will,
to modify the literal string in the legend, use the
\addlegendentry{\ion{Ne}{2}}
command. It works for graphs and for scatter classes. Just add labels in the
order they appear as scatter classes.
Best regards,
Clemens
On Fri, Jan 27, 2012 at 09:48:27PM -0600, William Henney wrote:
> Hi list
>
> I've recently started using pgfplots and am very impressed so far. Mostly, I
> have found answers to all my questions in the excellent manual, but today I
> hit a problem that I couldn't get round.
> Hopefully, someone on this list can help me out.
>
> In the attached figure, I am using scatter/classes with a column that is read
> from the accompanying data file. This works fine, and I can make a legend
> showing each class and accompanying marker. But I want to modify the text
> that appears in the legend for each class, so that it isn't just the literal
> string from the "meta" data column. For instance, I want it to be
> "[\ion{Ne}{2}]" instead of "Ne2". Is this possible?
>
> Another thing I tried was to use the extended \label[...]{...} syntax
> discussed in the manual (p.79), but I couldn't get it to work. When I
> uncomment the line containing \ref, I get various errors such as "! Package
> pgfkeys Error: I do not know the key '/pgfplots/error
> bars/mark'", see attached log file.
>
> Cheers
>
> Will
>
> --
>
> Dr William Henney, Centro de Radioastronomía y Astrofísica,
> Universidad Nacional Autónoma de México, Campus Morelia
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