\documentclass[border=2pt]{standalone}

\usepackage{pgfplots}
\usepackage{tikz}
\usepackage{xcolor}
\usetikzlibrary{positioning}
\usetikzlibrary{decorations.text}
\usetikzlibrary{decorations.pathmorphing}

\begin{document}
\input{overfitting}
\end{document}