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Re: [Orgmode] Ignore some lines when using org-plot/gnuplot
From: |
Darlan Cavalcante Moreira |
Subject: |
Re: [Orgmode] Ignore some lines when using org-plot/gnuplot |
Date: |
Sun, 15 Nov 2009 22:54:06 -0300 |
User-agent: |
Wanderlust/2.15.6 (Almost Unreal) Emacs/23.1 Mule/6.0 (HANACHIRUSATO) |
Don't worry about a late reply. Sometimes I need a lot of time just to read the
E-Mails here in the list (this is one of the most active lists I have ever seen
and a really good one to follow) and I wonder how you guys not only read it but
also fix bugs and implement new features.
Thanks for this Eric. It sure opens a lot of possibilities.
- Darlan
At Sat, 14 Nov 2009 20:34:55 -0700,
Eric Schulte wrote:
>
> Darlan Cavalcante Moreira <address@hidden> writes:
>
> > Hi everybody,
> >
> > Is there a way to ignore some lines when using org-plot/gnuplot to plot a
> > table
> > in Org? I have a table with some expenses, but the last two lines are the
> > total
> > calculated from the previous lines. I'd like to plot only the expenses and
> > ignore the last two lines.
> >
> > In the docs there is the option "deps" to specify which columns should be
> > plotted but I can't find an equivalent for lines (there is a line option
> > but I
> > understand that it is used to send some extra command to gnuplot).
> >
>
> Hi Darlan,
>
> Sorry about the extremely delayed reply. I don't believe that what
> you've described is possible in the current implementation of org-plot.
> It is possible however using org-babel which supports gnuplot.
> Org-babel now allows indexing into the values of variable assignments.
>
> So for example a simple gnuplot example could graph the contents of a
> table by assigning that table to a variable
>
> #+tblname: squares
> | 1 | 1 |
> | 2 | 4 |
> | 3 | 9 |
> | 4 | 16 |
> | 5 | 25 |
> | 6 | 36 |
>
> #+begin_src gnuplot :var data=squares :results silent
> plot data using 1:2 with lines
> #+end_src
>
> with this new change it is possible to assign only part of the table to
> a variable as you've described above. For example
>
> #+tblname: squares-with-sum
> | 1 | 1 |
> | 2 | 4 |
> | 3 | 9 |
> | 4 | 16 |
> | 5 | 25 |
> | 6 | 36 |
> |----+----|
> | 21 | 91 |
>
> #+begin_src gnuplot :var data=squares-with-sum[0:-3] :results silent
> plot data using 1:2 with lines
> #+end_src
>
> For more information on indexing see the documentation of the
> `org-babel-ref-index-list' function.
>
> Thanks for motivating this new feature -- Eric
>
> >
> >
> > - Darlan
> >
> >
> > _______________________________________________
> > Emacs-orgmode mailing list
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> > address@hidden
> > http://lists.gnu.org/mailman/listinfo/emacs-orgmode