\documentclass{article} \usepackage{pgfplots} \begin{document} \begin{tikzpicture} \begin{axis}[ small, width=12cm, height=1.8in, ymin=0, ymax=10, xmin=0, xmax=2, ybar, ymajorgrids=true, yminorgrids=false, minor y tick num=0, ytick pos=left, xtick pos=left, ytick align=center, yticklabel={$\pgfmathprintnumber{\tick}\%$}, xtick align=outside, x tick style={}, xticklabel style={rotate=45,anchor=east,font=\scriptsize\sffamily}, extra y tick style={tick pos=right, ticklabel pos=right, grid style={thick,color=black}}, extra y ticks={6.25}, extra y tick labels={Extra Label}, ] %\addplot plot[error bars/.cd,y dir=plus,y explicit,x dir=none] table %[x=Index,y expr=100*\thisrow{AvgLocked},y error=Diff]{locked_tabbed.dat}; \end{axis} \end{tikzpicture} \end{document}