# adding row numbers to a pgfplotstable

I've had a look at the attached answer Automatic table row numbers but I'm not sure how to apply it to pgfplotstable. I'd like to get automatic rownumbers on my table so I can apply formatting by row index. (for subtotals and the like).

I have over 100 rows so its hard to scan visually and know the row number, and the columns aren't named so something like

\pgfplotstableset{create on use/new/.style={create col/set={\thisrow{columns={0}}}}}


followed by a

\pgfplotstabletypeset[columns={new,0,1,2,3,4,5,6,7}]\blah


doesnt work and gives me an error. Is there an easy way to get automatic row numbers in a pgfplotstable?

-

You could use the key every first column to display the counter value at the start of column 1:

## Notes:

• As you can see, I don't have much experience with pgfplotstable, hence the bad formatting. Will come back and fix the columns later.

## Code:

\documentclass{article}
\usepackage{,pgfplotstable}

\usepackage{filecontents}
\begin{filecontents*}{sample.csv}
Column A, Column B, Column C
99, 98, 96
88, 87, 84
\end{filecontents*}

\newcounter{MyCount}
\begin{document}

\pgfplotstabletypeset[
]\MySampleData

\end{document}

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thanks @PeterGrill. I had half hoped there would be something that used some of the pgfplotstable native functionality. Add a column before and fill using \pgfplotstablerows or something. But this does the job just as well. – Tahnoon Pasha Oct 5 '12 at 0:35
@TahnoonPasha: There might well be. As I mentioned I have just started learning pgfplotstable, so perhaps a better answer will come along. If I come across it I will post it here. – Peter Grill Oct 5 '12 at 0:37

You can use the key create col/expr accum:

\documentclass{article}
\usepackage{pgfplotstable}
\pgfplotstableset{create on use/new/.style
= {create col/expr accum={\pgfmathaccuma+1}{0}}}
\begin{document}

Nice! You could simplify this a little bit by using the fact that the current row number is available in the \pgfplotstablerow macro, so you could say: create col/expr={\pgfplotstablerow+1} – Jake Jun 13 '13 at 18:27