latex-side by side tables
using minipage
% Please add the following required packages to your document preamble:
% \usepackage{multirow}
\begin{table*}
\begin{minipage}[t]{0.5\linewidth}
\caption{example1}
\label{Tab:example1}
\centering
\scalebox{1}{
\begin{tabular}{|c|c|c|c|c|}
\hline
\multirow{2}{*}{} & 1 & 2 & 3 & 4 \\ \cline{2-5}
& \multicolumn{4}{c|}{(v1, v2)} \\ \hline
\multirow{5}{*}{E1} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E2} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E3} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E4} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\end{tabular}}
\end{minipage}
\hfill
\begin{minipage}[t]{0.5\linewidth}
\caption{example2}
\label{Tab:example2}
\centering
\scalebox{1}{
\begin{tabular}{|c|c|c|c|c|}
\hline
\multirow{2}{*}{} & 1 & 2 & 3 & 4 \\ \cline{2-5}
& \multicolumn{4}{c|}{(v1, v2)} \\ \hline
\multirow{5}{*}{E1} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E2} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E3} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E4} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\end{tabular}}
\end{minipage}
\end{table*}
Final result:
using subtable
% Please add the following required packages to your document preamble:
% \usepackage{multirow}
\begin{table*}
\caption{Title}
\begin{subtable}[t]{.5\textwidth}
\caption{example1}
\raggedright
\label{Tab:example1}
\centering
\scalebox{1}{
\begin{tabular}{|c|c|c|c|c|}
\hline
\multirow{2}{*}{} & 1 & 2 & 3 & 4 \\ \cline{2-5}
& \multicolumn{4}{c|}{(v1, v2)} \\ \hline
\multirow{5}{*}{E1} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E2} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E3} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E4} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\end{tabular}}
\end{subtable}%
\begin{subtable}[t]{.5\textwidth}
\raggedleft
\caption{example2}
\label{Tab:example2}
\centering
\scalebox{1}{
\begin{tabular}{|c|c|c|c|c|}
\hline
\multirow{2}{*}{} & 1 & 2 & 3 & 4 \\ \cline{2-5}
& \multicolumn{4}{c|}{(v1, v2)} \\ \hline
\multirow{5}{*}{E1} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E2} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E3} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\multirow{5}{*}{E4} & (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \cline{2-5}
& (1, 2) & (1, 2) & (1, 2) & (1, 2) \\ \hline
\end{tabular}}
\end{subtable}
\end{table*}
Final result:
[1] create larex table online https://www.tablesgenerator.com/
[2] LaTax minipage http://www.sascha-frank.com/latex-minipage.html