How to break table horizontally

Question

I would like to know how I can break a table horizontally without reverting to landscape the page. I did not find anything about this issue.

In my special case (s. code down below), I would like to break the table at V6 to have two parts on the same page or two page in portrait format.

The packages longtable, supertabular, and dpfloat cannot help me doing that. Any ideas?

\documentclass[11pt,a4paper]{article}
\usepackage[table]{xcolor} 
\begin{document}
\begin{center}
\begin{table}[h!]
\begin{tabular}{lccccccccccccccc}
& V1 & V2 & V3 & V4 & V5 & V6 & V7 & V8 & V9 & V10 & V11 & V12 & V13 & V14 & V15 \\ \hline
V1&$1.000$&$0.782$&$0.721$&$0.871$&$0.671$&$0.889$&$0.494$&$0.595$&$0.859$&$0.764$&$0.824$&$0.649$&$0.778$&$0.801$&$0.774$\tabularnewline
V2&$0.782$&$1.000$&$0.689$&$0.769$&$0.717$&$0.856$&$0.648$&$0.687$&$0.831$&$0.767$&$0.835$&$0.620$&$0.710$&$0.780$&$0.689$\tabularnewline
V3&$0.721$&$0.689$&$1.000$&$0.720$&$0.558$&$0.757$&$0.348$&$0.397$&$0.673$&$0.674$&$0.575$&$0.470$&$0.492$&$0.712$&$0.574$\tabularnewline
V4&$0.871$&$0.769$&$0.720$&$1.000$&$0.656$&$0.831$&$0.442$&$0.532$&$0.797$&$0.714$&$0.724$&$0.689$&$0.731$&$0.812$&$0.771$\tabularnewline
V5&$0.671$&$0.717$&$0.558$&$0.656$&$1.000$&$0.698$&$0.513$&$0.500$&$0.660$&$0.631$&$0.617$&$0.656$&$0.833$&$0.693$&$0.569$\tabularnewline
V6&$0.889$&$0.856$&$0.757$&$0.831$&$0.698$&$1.000$&$0.568$&$0.613$&$0.838$&$0.763$&$0.833$&$0.640$&$0.734$&$0.756$&$0.653$\tabularnewline
V7&$0.494$&$0.648$&$0.348$&$0.442$&$0.513$&$0.568$&$1.000$&$0.725$&$0.549$&$0.561$&$0.540$&$0.354$&$0.504$&$0.557$&$0.445$\tabularnewline
V8&$0.595$&$0.687$&$0.397$&$0.532$&$0.500$&$0.613$&$0.725$&$1.000$&$0.556$&$0.604$&$0.617$&$0.347$&$0.554$&$0.585$&$0.596$\tabularnewline
V9&$0.859$&$0.831$&$0.673$&$0.797$&$0.660$&$0.838$&$0.549$&$0.556$&$1.000$&$0.820$&$0.827$&$0.761$&$0.764$&$0.698$&$0.568$\tabularnewline
V10&$0.764$&$0.767$&$0.674$&$0.714$&$0.631$&$0.763$&$0.561$&$0.604$&$0.820$&$1.000$&$0.744$&$0.675$&$0.703$&$0.749$&$0.646$\tabularnewline
V11&$0.824$&$0.835$&$0.575$&$0.724$&$0.617$&$0.833$&$0.540$&$0.617$&$0.827$&$0.744
V12&$0.649$&$0.620$&$0.470$&$0.689$&$0.656$&$0.640$&$0.354$&$0.347$&$0.761$&$0.675$&$0.660$&$1.000$&$0.791$&$0.527$&$0.462$\tabularnewline
V13&$0.778$&$0.710$&$0.492$&$0.731$&$0.833$&$0.734$&$0.504$&$0.554$&$0.764$&$0.703$&$0.707$&$0.791$&$1.000$&$0.675$&$0.609$\tabularnewline
V14&$0.801$&$0.780$&$0.712$&$0.812$&$0.693$&$0.756$&$0.557$&$0.585$&$0.698$&$0.749$&$0.739$&$0.527$&$0.675$&$1.000$&$0.814$\tabularnewline
V15&$0.774$&$0.689$&$0.574$&$0.771$&$0.569$&$0.653$&$0.445$&$0.596$&$0.568$&$0.646$&$0.653$&$0.462$&$0.609$&$0.814$&$1.000$\tabularnewline \hline
\end{tabular}
\end{table}
\end{center}
\end{document}

Answer 1

I propose another solution: changing the fontsize to \footnotesize and decreasing \tabcolsep to make it fit the text width, and improving its legibility with alternate row colours and increasing vertical spacing of rows with the cellspace package.

\documentclass[11pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[showframe, nomarginpar]{geometry}
\usepackage{array}
\usepackage{booktabs}
\usepackage{tabularx}
\usepackage{fourier}
\usepackage{amsmath}

\usepackage{cellspace}
\setlength\cellspacetoplimit{6pt}
\setlength\cellspacebottomlimit{6pt}

\usepackage[table, x11names]{xcolor}

\begin{document}

\begin{table}[!h]
\centering\footnotesize\arrayrulecolor{IndianRed3}
\setlength\tabcolsep{3.pt}
\noindent
\rowcolors{2}{}{Firebrick3!15!}
\begin{tabularx}{\linewidth}{Sl*{15}{>{\centering\arraybackslash  $}X <{$}}}
\toprule
& \text{V1} & \text{V2} & \text{V3} & \text{V4} & \text{V5} & \text{V6} & \text{V7} & \text{V8} & \text{V9} & \text{V10} & \text{V11} & \text{V12} & \text{V13} & \text{V14} & \text{V15} \\
\midrule
V1& 1.000 & 0.782 & 0.721 & 0.871 & 0.671 & 0.889 & 0.494 & 0.595 & 0.859 & 0.764 & 0.824 & 0.649 & 0.778 & 0.801 & 0.774 \\
V2 & 0.782 & 1.000 & 0.689 & 0.769 & 0.717 & 0.856 & 0.648 & 0.687 & 0.831 & 0.767 & 0.835 & 0.620 & 0.710 & 0.780 & 0.689 \\
V3 & 0.721 & 0.689 & 1.000 & 0.720 & 0.558 & 0.757 & 0.348 & 0.397 & 0.673 & 0.674 & 0.575 & 0.470 & 0.492 & 0.712 & 0.574 \\
V4 & 0.871 & 0.769 & 0.720 & 1.000 & 0.656 & 0.831 & 0.442 & 0.532 & 0.797 & 0.714 & 0.724 & 0.689 & 0.731 & 0.812 & 0.771 \\
V5 & 0.671 & 0.717 & 0.558 & 0.656 & 1.000 & 0.698 & 0.513 & 0.500 & 0.660 & 0.631 & 0.617 & 0.656 & 0.833 & 0.693 & 0.569 \\
V6 & 0.889 & 0.856 & 0.757 & 0.831 & 0.698 & 1.000 & 0.568 & 0.613 & 0.838 & 0.763 & 0.833 & 0.640 & 0.734 & 0.756 & 0.653 \\
V7 & 0.494 & 0.648 & 0.348 & 0.442 & 0.513 & 0.568 & 1.000 & 0.725 & 0.549 & 0.561 & 0.540 & 0.354 & 0.504 & 0.557 & 0.445 \\
V8 & 0.595 & 0.687 & 0.397 & 0.532 & 0.500 & 0.613 & 0.725 & 1.000 & 0.556 & 0.604 & 0.617 & 0.347 & 0.554 & 0.585 & 0.596 \\
V9 & 0.859 & 0.831 & 0.673 & 0.797 & 0.660 & 0.838 & 0.549 & 0.556 & 1.000 & 0.820 & 0.827 & 0.761 & 0.764 & 0.698 & 0.568 \\
V10 & 0.764 & 0.767 & 0.674 & 0.714 & 0.631 & 0.763 & 0.561 & 0.604 & 0.820 & 1.000 & 0.744 & 0.675 & 0.703 & 0.749 & 0.646 \\
V11 & 0.824 & 0.835 & 0.575 & 0.724 & 0.617 & 0.833 & 0.540 & 0.617 & 0.827 & 0.744   &  &  &  &  &  \\
V12 & 0.649 & 0.620 & 0.470 & 0.689 & 0.656 & 0.640 & 0.354 & 0.347 & 0.761 & 0.675 & 0.660 & 1.000 & 0.791 & 0.527 & 0.462 \\
V13 & 0.778 & 0.710 & 0.492 & 0.731 & 0.833 & 0.734 & 0.504 & 0.554 & 0.764 & 0.703 & 0.707 & 0.791 & 1.000 & 0.675 & 0.609 \\
V14 & 0.801 & 0.780 & 0.712 & 0.812 & 0.693 & 0.756 & 0.557 & 0.585 & 0.698 & 0.749 & 0.739 & 0.527 & 0.675 & 1.000 & 0.814 \\
V15 & 0.774 & 0.689 & 0.574 & 0.771 & 0.569 & 0.653 & 0.445 & 0.596 & 0.568 & 0.646 & 0.653 & 0.462 & 0.609 & 0.814 & 1.000 \\ \bottomrule
\end{tabularx}
\end{table}

\end{document}