LaTeX Forum

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\begin{document}

\begin{table}[htbp]
	\caption{Handsimulated approaches:}
	\label{tab:handsim}
	\hspace{-1.8cm}
	\begin{tabularx}{\textwidth}{|c|c|c|c||c|c|c|c||c|c|c|c|}
		\cline{1-12}
		\hline
		& \multicolumn{3}{c||}{\textbf{Hand. sim. app. 1}} & & \multicolumn{3}{c||}{\textbf{Hand. sim. app. 2}} & & \multicolumn{3}{c|}{\textbf{Hand. sim. app. 3}} \\
		\cline{1-12}	
		%\cline{5-7} 
		\hline
		\textbf{k-mer} & eucl  & frac & maha & \textbf{k-mer} & eucl & frac & maha & \textbf{k-mer} & eucl & frac &  maha \\ \hline
		\textbf{k=3} & \cellcolor{red}20 & \cellcolor{red}18 & \cellcolor{red}20 & \textbf{k=3} & \cellcolor{red}14 & \cellcolor{red}14 & \cellcolor{red}16 & \textbf{k=3} & \cellcolor{red}14 & \cellcolor{red}12 & \cellcolor{red}12 \\ \hline
		\textbf{k=4} & \cellcolor{red}8 & \cellcolor{red}8 & \cellcolor{red}10 & \textbf{k=4} & \cellcolor{red}12 & \cellcolor{orange}4 & \cellcolor{red}14 & \textbf{k=4} & \cellcolor{red}10 & \cellcolor{red}6 & \cellcolor{red}12 \\ \hline
		\textbf{k=5} & \cellcolor{orange}4 & \cellcolor{orange}4 & \cellcolor{red}8 & \textbf{k=5} & \cellcolor{yellow}2 & \cellcolor{red}8 & \cellcolor{red}8 & \textbf{k=5} & \cellcolor{orange}4 & \cellcolor{yellow}2 & \cellcolor{red}12 \\ \cline{1-12}
		\textbf{k=6} & \cellcolor{yellow}2 & \cellcolor{red}8 & \cellcolor{red}8 & \textbf{k=6} & \cellcolor{green}0 & \cellcolor{red}6 & \cellcolor{red}6 & \textbf{k=6} & \cellcolor{yellow}2 & \cellcolor{red}6 & \cellcolor{red}8 \\ \hline
		\textbf{k=7} & \cellcolor{yellow}2 & \cellcolor{red}8 & \cellcolor{red}8 & \textbf{k=7} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=7} & \cellcolor{yellow}2 & \cellcolor{red}8 & \cellcolor{red}8 \\ \hline
		\textbf{k=8} & \cellcolor{green}0 & \cellcolor{red}8 & \cellcolor{yellow}2 & \textbf{k=8} & \cellcolor{green}0 & \cellcolor{red}6 & \cellcolor{green}0 & \textbf{k=8} & \cellcolor{yellow}2 & \cellcolor{orange}4 & \cellcolor{yellow}2 \\ \hline
		\textbf{k=9} & \cellcolor{green}0 & \cellcolor{red}8 & \cellcolor{green}0 & \textbf{k=9} & \cellcolor{green}0 & \cellcolor{orange}4 & \cellcolor{green}0 & \textbf{k=9} & \cellcolor{yellow}2 & \cellcolor{red}8 & \cellcolor{orange}4 \\ \hline
		\textbf{k=10} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=10} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=10} & \cellcolor{yellow}2 & \cellcolor{yellow}2 & \cellcolor{yellow}2 \\ \hline
		\textbf{k=11} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=11} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=11} & \cellcolor{yellow}2 & \cellcolor{yellow}2 & \cellcolor{yellow}2 \\ \hline
		\textbf{k=12} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=12} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=12} & \cellcolor{yellow}2 & \cellcolor{yellow}2 & \cellcolor{yellow}2 \\ \hline
		\textbf{k=13} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=13} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=13} & \cellcolor{yellow}2 & \cellcolor{yellow}2 & \cellcolor{orange}4 \\ \hline
		\textbf{k=14} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=14} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=14} & \cellcolor{yellow}2 & \cellcolor{yellow}2 & \cellcolor{orange}4 \\ \hline
		\textbf{k=15} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=15} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=15} & \cellcolor{yellow}2 & \cellcolor{yellow}2 & \cellcolor{orange}4 \\ \hline
		\textbf{k=30} & \cellcolor{yellow}2 & \cellcolor{yellow}2 & \cellcolor{green}0 & \textbf{k=30} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=30} & \cellcolor{yellow}2 & \cellcolor{yellow}2 & \cellcolor{red}4 \\ \hline
		\textbf{k=50} & \cellcolor{orange}4 & \cellcolor{orange}4 & \cellcolor{yellow}2 & \textbf{k=50} & \cellcolor{green}0 & \cellcolor{green}0 & \cellcolor{green}0 & \textbf{k=50} & \cellcolor{yellow}2 & \cellcolor{yellow}2 & \cellcolor{red}6 \\ \hline				
	\end{tabularx}
\end{table}


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\documentclass[12pt,a4paper]{article}

\usepackage[utf8]{inputenc} 
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\usepackage{array}
\usepackage{booktabs}
\usepackage{siunitx}
\usepackage{pdflscape}
\usepackage{showframe}% Anzeige der Seitenränder
\usepackage{scrhack}% Ermöglicht die Anzeige der Seitenränder im Querformat. Funktioniert im Online-Editor bisher nicht

\newcolumntype{M}{>{\bfseries\boldmath$}l<{$}}

\begin{document}
\begin{landscape}
\begin{table}[htbp]
\centering
\caption{Handsimulated approaches:}
\label{tab:handsim}
\renewcommand{\arraystretch}{1.3}
\sisetup{
	table-column-width=1cm,
	table-format=2
}
\begin{tabular}{ *3{M*3{S}} }
\toprule
& \multicolumn{3}{c}{\textbf{Hand. sim. app. 1}} & & 
  \multicolumn{3}{c}{\textbf{Hand. sim. app. 2}} & & 
  \multicolumn{3}{c}{\textbf{Hand. sim. app. 3}} \\

\cmidrule(lr){2-4}
\cmidrule(lr){6-8}
\cmidrule(lr){10-12}

k\text{-mer} & {eucl}  & {frac} & {maha} & 
k\text{-mer} & {eucl}  & {frac} & {maha} & 
k\text{-mer} & {eucl}  & {frac} & {maha} \\
\midrule
k=3 & {\cellcolor{red}}20 & {\cellcolor{red}}18   & {\cellcolor{red}}20 & 
k=3 & {\cellcolor{red}}14 & {\cellcolor{red}}14   & {\cellcolor{red}}16 & 
k=3 & {\cellcolor{red}}14 & {\cellcolor{red}}12   & {\cellcolor{red}}12 \\

k=4 & {\cellcolor{red}}8  & {\cellcolor{red}}8    & {\cellcolor{red}}10 & 
k=4 & {\cellcolor{red}}12 & {\cellcolor{orange}}4 & {\cellcolor{red}}14 & 
k=4 & {\cellcolor{red}}10 & {\cellcolor{red}}6    & {\cellcolor{red}}12 \\
\bottomrule
\end{tabular}
\end{table}
\end{landscape}
\end{document}