[Tex/LaTex] Externalize pgfplotstable with csv file

external filespgfplotspgfplotstabletables

This is a direct follow-up question to this: Adding units to pgfplotstable header

After fixing the output I tried outsourcing the table. After figuring out that standalone does not work with longtable (thanks to @Jake) I removed that, but even then every time i try to compile with pdfLaTeX I get this error:

! Package pgfplots Error: Could not read table file 't3.dat'. In case you inten
ded to provide inline data: maybe TeX screwed up your end-of-lines? Try row se
p=crcr' and terminate your lines with \\ (refer to the pgfplotstable manual for details).

where t3.csv is the file where all the data is stored.

My file currently looks like this:

\documentclass{standalone}
\usepackage{pgfplotstable} 
\usepackage{booktabs} 
\usepackage[allowlitunits]{siunitx}

\begin{document}   
    \pgfplotsinvokeforeach{100,90,...,10}{
        \pgfmathsetmacro\concentration{#1/100*0.25}
        \pgfplotstableset{
            columns/#1/.estyle={
                fixed,fixed zerofill,precision=3,
                column type=p{4.5em},
                column name={\SI[round-mode=places,round-precision=3]{\concentration}{\mol\per\liter} (\SI{#1}{\percent})}}
        }
    }
    \pgfplotstabletypeset[col sep=semicolon,
    header=true,    
    columns/Zeit/.style={fixed,fixed ,column type=r},
    every head row/.style={
        before row=\toprule,
        after row=\midrule\endhead
    }, 
    every last row/.style={
        after row=\bottomrule
    }
    ]{t3.dat}

\end{document}

So to summarize the whole thing, I tried 2 ways to include this table:

  1. Using the standalone class and including the file with \includestandalone{subdir/filename}
  2. Using a file without any preamble and \documentclass and using the \input{subdir/filename} method.

Still I'm not able to determine what causes this error. Running Windows 7 and TeXStudio

EDIT

it looks like I am not able to write a file into any directory. so the question should be, why am I not able to write a file?

Best Answer

Ok I fixed it but it wasn't as spectacular as I thought

\documentclass{standalone}
\usepackage{pgfplotstable} 
\usepackage{booktabs} 
\usepackage[allowlitunits]{siunitx}
\begin{document}   
\sisetup{per-mode=symbol}
\pgfplotsinvokeforeach{100,90,...,10}{
    \pgfmathsetmacro\concentration{#1/100*0.25}
    \pgfplotstableset{
        columns/#1/.estyle={
            fixed,fixed zerofill,precision=3,
            column type=p{4.5em},
            column name={\SI[round-mode=places,round-precision=3]{\concentration}{\mol\per\liter} (\SI{#1}{\percent})}}
    }
}
\pgfplotstabletypeset[col sep=semicolon,
header=true,    
columns/Zeit/.style={fixed,fixed ,column type=r},
every head row/.style={
    before row=\toprule,
    after row=\midrule
}, 
every last row/.style={
    after row=\bottomrule
}
]{t3.dat}

\end{document}

looks pretty much the same but since standalone does not work with longtable I removed this part:

\pgfplotstableset{
    begin table=\begin{longtable},
        end table=\end{longtable},
}

what I forgot was to remove the \endhead command within after row (see first Question)

And I moved all files to the same directory, not sure if this is that important. It is not that pretty but works for me.

Related Question