# Footnote on graph title

I'd like to add a footnote to the graph title. After adding the footnote, it disappears! Here is my MWE:

\documentclass{article}
\usepackage{pgfplots}

\pagestyle{empty}
\usetikzlibrary{patterns}

\begin{document}
\begin{tikzpicture}
\begin{axis}
[
axis lines*=left,
title=Histogram of S\&P 500 CEOs Past Experience \footnote{Hey, where are you?},
xbar,
width=8cm,
height=5cm,
xlabel={},
symbolic y coords={Sales, Marketing, Finance, Operations},
ytick=data,
xmin=0,
xmax=0.5,
nodes near coords,
nodes near coords align={horizontal}
]

[draw=blue,pattern=horizontal lines light blue]
coordinates
{(0.17,Sales)  (0.24,Marketing) (0.31,Finance) (0.42,Operations)};
\end{axis}
\end{tikzpicture}
\end{document}


Any help?

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Try \footnotemark and \footnotetext – JLDiaz Dec 17 '12 at 22:20
I suggest that you don't do this. It's not informative as a caption and unnecessarily far from the plot. That's what caption is all about; providing context to the figures. – percusse Dec 18 '12 at 1:23
@percusse: thanks for the suggestion. I was going to enter the graph reference as a footnote. Any suggestion? – N Nik Dec 18 '12 at 14:38
I would add a phrase something like taken from [26] or something similar. – percusse Dec 18 '12 at 18:18

As mentioned by JLdiaz, \footnotemark and \footnotetext combination helps you here:

\documentclass{article}
\usepackage{pgfplots}

\pagestyle{empty}
\usetikzlibrary{patterns}

\begin{document}
\begin{tikzpicture}
\begin{axis}
[
axis lines*=left,
title=Histogram of S\& P 500 CEOs Past Experience \footnotemark, %% <---------
xbar,
width=8cm,
height=5cm,
xlabel={},
symbolic y coords={Sales, Marketing, Finance, Operations},
ytick=data,
xmin=0,
xmax=0.5,
nodes near coords,
nodes near coords align={horizontal}
]

[draw=blue,pattern=horizontal lines light blue]
coordinates
{(0.17,Sales)  (0.24,Marketing) (0.31,Finance) (0.42,Operations)};
\end{axis}
\end{tikzpicture}
\footnotetext{Hey, where are you?} %% <-----
\end{document}


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