Created by Torbjørn T. 2016-09-06

File snippet.txt Added

+\documentclass{standalone}

+\usepackage{pgfplots}

+\usepackage{pgfplotstable}

+\pgfplotsset{compat = 1.13}

+\pgfplotstableset{col sep = comma}

+\begin{document}

+\pgfplotstableread{

+20, 1000

+70, 500

+}{\data}

+\begin{tikzpicture}

+\begin{axis}

+\addplot[black] table[x index = 0, y index = 1, col sep = comma] {\data};

+\addlegendentry[]{040\_Mn}

+\addplot[red!20!blue] table[x index = 0, y expr={\thisrowno{1} - 500}] {\data};

+\addlegendentry[]{023\_Mn}

+\addplot[yshift=-2cm,red!20!blue] table[x index = 0, y index=1] {\data};

+\end{axis}

+\end{tikzpicture}

+\end{document}

Snippets