# [Tex/LaTex] marking statistically significant results in bar graph using pgfplots

pgfplots

I'm making a bar chart with pgfplots and would like to put an asterisk above some bars to show statistical significance (p < 0.05). Any ideas?

Here's an example graph:

\begin{tikzpicture}
\begin{axis}[
symbolic x coords={(a),(b),(c),(d),(e)},
xtick=data]
((a),51365) % I'd like to put an asterisk above some of these
((b),74531)
((c),52862)
((d),78999)
((e),71825)
};
\end{axis}
\end{tikzpicture}


I would use the nodes near coords functionality together with point meta=explicit symbolic for this:

\documentclass[border=5mm]{standalone}

\usepackage{pgfplots}

\begin{document}
\begin{tikzpicture}
\begin{axis}[
symbolic x coords={(a),(b),(c),(d),(e)},
xtick=data,
ymin=0,
point meta=explicit symbolic,
nodes near coords
]