Graphics, Figures & Tables ⇒ Problem using pgfplotstable

[mas]

I tried using pgfplotstableread in inline mode to read the data and plot them subsequently. The table is read and can be typeset. But, if I try to plot, I get an error message. The MWE:

Code: Select all

%
\documentclass{article}

\usepackage{tikz}
\usepackage{pgfplots}
  \pgfplotsset{compat=1.13}
\usepackage{pgfplotstable}

\begin{document}
%
\pgfplotstableread{
T      I1       I2
305   0.158   0.184  
310   0.147   0.175  
316   0.135   0.163   
320   0.127   0.156  
325   0.118   0.146  
330   0.107   0.137  
336   0.097   0.125  
340   0.090   0.116  
346   0.081   0.105  
350   0.071   0.097  
355   0.064   0.089
}\EXPDATA 

\begin{tikzpicture}
\begin{axis} 
  \addplot table [x=T, y=I1] { \EXPDATA } ;
\end{axis}  
\end{tikzpicture}

\end{document} 

The error message:

Code: Select all

...
! Undefined control sequence.
\EXPDATA ->\pgfpl@@ 
                    {T}\pgfpl@@ {I1}\pgfpl@@ {I2}
l.28   \addplot table [x=T, y=I1] { \EXPDATA } ;
  
?

Am I missing something very trivial here?

[Johannes_B]

\pgfplotstableread will store the table as internal structure.

So \EXPDATA does not contain your simple tabular, but the parsed and disected information. Better use external files.

[mas]

Thanks for the clarification. Looks like the manual (p48) which says this:

Code: Select all

\pgfplotstableread{datafile.dat}\loadedtable % use any custom name in place of ‘\loadedtable’
...
\addplot table[x=dof,y=L2] {\loadedtable};
...
\addplot table[x=dof,y=Lmax] {\loadedtable};
...

is not not to be taken at face value.

[Johannes_B]

You are correct, this is in the manual of pgfplots. So, this is supposed to work and could be a bug. I investigate further.

EDIT: Ulrike Fischer saves the day, not the first time i have to say http://chat.stackexchange.com/transcrip ... 4#27675874

[mas]

Thanks to you and Ulrike. Got it to work. Almost all the tikz related stuff use space and newlines liberally. Never suspected that the space would be a show stopper