\externalaxes
\setlength{\unitlength}{1cm}
\renewcommand{\axeslabelsize}{\tiny}
\referencesystem(0,0)(1.5,0)(0,2)
\begin{center}
\begin{Picture}(-2.5,-1.5)(2.5,1.5)
\makenotics
\makenolabels
\cartesianaxes(-2.25,-1.25)(2.25,1.25)
\printxticslabels[1]{-2}{0.5}{2.25}
\printyticslabels[4]{-1}{0.25}{1}
\end{Picture}
\end{center}
