How I can write this multi-column and multi-row table in LaTeX?

Question

I am trying to write the table but not succeeded. How can I write the attached table in LaTeX.

Please see the table. I am trying to write this table in LaTeX but not succeeded.

Answer 1

Your table would look more professional using booktabs.

I've used \makecell in the multi-rows for a better vertical alignment.

Next time you ask, please add a minimal example of what you tried.

Edit: I've also added TeXnician's more elegant solution with the first two columns swapped, and another solution with rows and columns switched

\documentclass{article}
\usepackage{array}
\renewcommand{\arraystretch}{1.1}
\newcolumntype{C}{>{\centering\arraybackslash}p{1em}}
\usepackage{booktabs}
\usepackage{multirow}
\usepackage{makecell}
\usepackage{caption}

\begin{document}
\begin{table}[htb]
    \centering    
    \caption{My professional table\label{tab:my_label}}
    \begin{tabular}{*{7}{c}}
    \toprule
    \multirow{2}{*}{Observation} & \multirow{2}{*}{Class} & \multicolumn{5}{c}{Binary attributes} \\
    \cmidrule(lr){3-7}
    & & $b_1$ & $b_2$ & $b_3$ & $b_4$ & $b_5$\\
    \midrule
    1 & \multirow{4}{*}{\makecell{(Positive)\\$\Omega^+$}} & 1 & 1 & 1 & 0 & 0 \\
    2 & & 1 & 1 & 1 & 1 & 1 \\
    3 & & 1 & 0 & 1 & 1 & 0 \\
    4 & & 1 & 1 & 1 & 1 & 0 \\
    \midrule
    5 & \multirow{4}{*}{\makecell{(Negative)\\$\Omega^-$}} & 1 & 0 & 1 & 0 & 0 \\
    6 & & 0 & 0 & 0 & 0 & 0 \\
    7 & & 0 & 0 & 1 & 0 & 0 \\
    8 & & 1 & 0 & 0 & 0 & 0 \\
    \bottomrule
    \end{tabular}
\end{table}
\begin{table}[htb]
    \centering    
     \caption{A professional table (\TeX nician's suggestion)\label{tab:tex_label}}
    \begin{tabular}{l*{6}{c}}
    \toprule
    Class & Observation & \multicolumn{5}{c}{Binary attributes} \\
    \cmidrule(lr){3-7}
    & & $b_1$ & $b_2$ & $b_3$ & $b_4$ & $b_5$\\
    \midrule
    (Positive) $\Omega^+$ & 1 & 1 & 1 & 1 & 0 & 0 \\
    & 2 & 1 & 1 & 1 & 1 & 1 \\
    & 3 & 1 & 0 & 1 & 1 & 0 \\
    & 4 & 1 & 1 & 1 & 1 & 0 \\
    \midrule
    (Negative) $\Omega^-$ & 5 & 1 & 0 & 1 & 0 & 0 \\
    & 6 & 0 & 0 & 0 & 0 & 0 \\
    & 7 & 0 & 0 & 1 & 0 & 0 \\
    & 8 & 1 & 0 & 0 & 0 & 0 \\
    \bottomrule
    \end{tabular}
\end{table}
\begin{table}[htb]
    \centering    
    \caption{Another kind of professional table\label{tab:other_label}}
    \begin{tabular}{c*{8}{C}}
    \toprule
     & \multicolumn{8}{c}{Class}\\
    & \multicolumn{4}{c}{(Positive) $\Omega^+$} & \multicolumn{4}{c}{(Negative) $\Omega^-$}\\
    \cmidrule(lr){2-5}\cmidrule(lr){6-9}
    \multirow{2}{*}{\makecell{Binary\\ attributes}} & \multicolumn{8}{c}{Observation}\\
     & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 \\
    \cmidrule(lr){1-1}\cmidrule(lr){2-5}\cmidrule(lr){6-9}
    $b_1$ & 1 & 1 & 1 & 1 & 1 & 0 & 0 & 1 \\
    $b_2$ & 1 & 1 & 0 & 1 & 0 & 0 & 0 & 0 \\
    $b_3$ & 1 & 1 & 1 & 1 & 1 & 0 & 1 & 0 \\
    $b_4$ & 0 & 1 & 1 & 1 & 0 & 0 & 0 & 0 \\
    $b_5$ & 0 & 1 & 0 & 0 & 0 & 0 & 0 & 0 \\
    \bottomrule
    \end{tabular}
\end{table}
\end{document}

Answer 2

To give you a start. I am using this answer. You will have to correct the binary numbers, I just put 1 everywhere.

\documentclass{article}
\usepackage{xcolor}
\usepackage{array}
\usepackage{colortbl}
\usepackage{booktabs}
\usepackage{multirow}
\begin{document}
\setlength{\aboverulesep}{-0.45pt} \setlength{\belowrulesep}{-0.45pt}
\begin{tabular}{*{7}{|c}|}
\hline
\rowcolor{gray!50} & & \multicolumn{5}{c|}{Binary attributes} \\[2pt]
\cmidrule[0.8pt]{3-7}
\rowcolor{gray!50}
\multirow{-2}{*}{ Observation} & 
\multirow{-2}{*}{Class}& $b_1$ & $b_2$ & $b_3$ & $b_4$ & $b_5$\\
\hline
1 & & 1 & 1 & 1 & 1 & 1 \\
2 & (Positive) & 1 & 1 & 1 & 1 & 1 \\
3 &\multirow{2}{*}{$\Omega^*$} & 1 & 1 & 1 & 1 & 1 \\
4 & & 1 & 1 & 1 & 1 & 1 \\[1pt]
\midrule
\vphantom{$1^|$}5 & & 1 & 1 & 1 & 1 & 1 \\
6 & (Negative) & 1 & 1 & 1 & 1 & 1 \\
7 &\multirow{2}{*}{$\Omega^-$} & 1 & 1 & 1 & 1 & 1 \\
8 & & 1 & 1 & 1 & 1 & 1 \\
\hline
\end{tabular}
\end{document}