Hi Ignasi,
yes, that is possible since pgfplots 1.5 : use 'plot unprocessed to
file={<file name>}':
\begin{tikzpicture}
\begin{axis}[
% enlargelimits=false,
domain=0:2*pi,
samples=200,
every axis plot post/.append style={mark=none},
cycle list name=exotic,
axis y line=left,
axis x line=middle,
xmax=7,
ymin=-1.2,
ymax=1.2,
xtick=\empty,
ytick=\empty
]
\addplot {sin(deg(x))};
\addplot {sin(deg(3*x))};
\addplot[plot unprocessed to file={P.dat}] {sin(deg(x))+0.5*sin(deg(3*x))};
\end{axis}
\end{tikzpicture}
\begin{tikzpicture}
\begin{axis}
\addplot file {P.dat};
\end{axis}
\end{tikzpicture}
The feature might not be 100% stable (which is why it has not yet been
documented). You can still use it - and I appreciate any bug reports.
Best regards
Christian
Am 26.09.2011 12:46, schrieb Ignasi Furió:
> Hi,
>
> instead of importing data from a table and plot them I would like plot a
> function and export data to a table
> and use it later. Look at the example, can I export points from first and
> second \addplot command to a table
> use them with \addplot table instead of invoking again in the third plot?
>
> I know how to create tables from scratch and how to save and combine them,
> but I don't know find how to
> export x coordinate.
>
> \documentclass[border=3mm]{standalone}
> \usepackage{pgfplots}
> \usepackage{pgfplotstable}
>
> \begin{document}
> \begin{tikzpicture}
> \begin{axis}[
> % enlargelimits=false,
> domain=0:2*pi,
> samples=200,
> every axis plot post/.append style={mark=none},
> cycle list name=exotic,
> axis y line=left,
> axis x line=middle,
> xmax=7,
> ymin=-1.2,
> ymax=1.2,
> xtick=\empty,
> ytick=\empty
> ]
> \addplot {sin(deg(x))};
> \addplot {sin(deg(3*x))};
> \addplot {sin(deg(x))+0.5*sin(deg(3*x))};
> \end{axis}
> \end{tikzpicture}
> \end{document}
>
> Thank you
>
> Ignasi
>
> ------------------------------------------------------------------------------
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> threats, fraudulent activity and more. Splunk takes this data and makes
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------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure contains a
definitive record of customers, application performance, security
threats, fraudulent activity and more. Splunk takes this data and makes
sense of it. Business sense. IT sense. Common sense.
http://p.sf.net/sfu/splunk-d2dcopy1
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