\documentclass[crop,tikz]{standalone}% 'crop' is the default for v1.0, before it was 'preview'
\usepackage{pgfplots}
\usepackage{pgfplotstable}
\usepgfplotslibrary{groupplots}

\input{setup.tex}

\begin{document}
\pgfplotstableread[col sep=comma]{bit-width/SYN-Tanh/4/quantized_layer_4_bits.csv}\iplaneTanh
\pgfplotstableread[col sep=comma]{bit-width/SYN-ReLU/4/quantized_layer_4_bits.csv}\iplaneRelu

\begin{tikzpicture}
	\begin{groupplot}[group style={group size= 2 by 1, horizontal sep=2cm,vertical sep=0cm}]
		\nextgroupplot[IB axis, title=\tanh]
			\addplot[IB plot] table[x=x,y=y]{\iplaneTanh};
		\nextgroupplot[IB axis, title=\relu, IB colorbar single]
			\addplot[IB plot] table[x=x,y=y]{\iplaneRelu};
	\end{groupplot}
\end{tikzpicture}

\end{document}
