How can I draw asymetric curly braces in TikZ? I have the following MWE:
\documentclass{article}
\usepackage{tikz, pgfplots}
\begin{document}
\begin{tikzpicture}[
>=stealth,]
\draw [decorate,decoration={brace,amplitude=4pt}]
(0,2)--(0,0) node[midway, right, font=\footnotesize, xshift=2pt] {Compromise loss};
\end{tikzpicture}
\end{document}
Which produces

But how can I have for instance 1/3 length below the "beak" and 2/3 length above?
