I have a graph and it doesn't start at zero. How do I add the symbol (my vague description is mentioned in the title) to the y axis of the graph? If it helps, my graph is a scatterplot.
Here's a bit of code sampled from this question to create a chart:
\documentclass{article}
\usepackage{pgfplotstable}
\pgfplotstableread[col sep = comma]{
x, y1, y2,
1, 1.0, 3.0,
2, 2.2, 6.3,
4, 3.9, 10.0,
8, 8.1, 25.0,
} \data
\begin{document}
\begin{figure}
\centering
\begin{tikzpicture}
\begin{axis}[legend pos=north west,
legend image post style={solid}
]
\addplot[only marks,mark=o,color=red] table [x=x, y=y1] {\data};
\addplot[no markers,color=red,forget plot] table [x=x, y={create col/linear regression={y=y1}}] {\data};
\addlegendentry{y1}
\addplot[only marks,mark=square,color=blue] table [x=x, y=y2]{\data};
\addplot[no markers,color=blue,forget plot] table [x=x, y={create col/linear regression={y=y2}}] {\data};
\addlegendentry{y2}
\end{axis}
\end{tikzpicture}
\end{figure}
\end{document}
Best Answer
There's the key
axis y discontinuity=<crunch|parallel|none>
that will insert a symbol on your axis: