Vrftjkry

I tried this code but the border lines are not deleted:

begin{tabular}{|p{0.6in}|p{0.3in}|p{0.9in}|p{0.9in}|p{0.8in}|} hline 

 &                                                   &  & $P_{mot}$ &  \ hline 

$P_{batt}$ &  & S & M & H \ hline 

 & S & S & Z & VS \ hline 

SOC & M & M & Z & H \ hline 

 & H & M & Z & H \ hline 

end{tabular}

How do I delete the border of cells?

With multirow and multicolumn you can reach what you need.

I have also created a new column type for centering the cell contents and redefined arraystretch to have more vertical space between rows.

However, I would suggest you to get rid of the vertical rules and use booktabs.

documentclass{article}

usepackage{array}

newcolumntype{C}[1]{>{centeringarraybackslash}p{#1}}

renewcommand{arraystretch}{1.3}

usepackage{multirow}



usepackage{booktabs}

begin{document}

Your table:vspace{10pt}



begin{tabular}{|p{0.6in}|C{0.3in}|C{0.4in}|C{0.4in}|C{0.4in}|} hline 

 multicolumn{2}{|c|}{multirow{2}{*}{$P_{batt}$}}& multicolumn{3}{c|}{$P_{mot}$}   \ cline{3-5} 

 multicolumn{2}{|c|}{}  & S & M & H \ hline 

  & S & S & Z & VS \ cline{2-5} 

 SOC & M & M & Z & H \ cline{2-5} 

 & H & M & Z & H \ hline 

end{tabular}



vspace{10pt}My suggestion:vspace{10pt}



begin{tabular}{lc*{3}{C{1.5em}}}

toprule 

 multicolumn{2}{c}{multirow{2}{*}{$P_{batt}$}}& multicolumn{3}{c}{$P_{mot}$}   \ cmidrule{3-5} 

 multicolumn{2}{c}{}  & S & M & H \ midrule 

 & S & S & Z & VS \ cmidrule(l){2-5} 

SOC & M & M & Z & H \ cmidrule(l){2-5} 

 & H & M & Z & H \ 

 bottomrule

end{tabular}

end{document}

Welcome to TeX.SE! In order to merge rows or columns, you need to use multirow (which requires the multirow package) or multicolumn, respectively. And if you nest them, you need to do it in the right order.

documentclass{article}

usepackage{multirow}

begin{document}

begin{tabular}{|p{0.6in}|p{0.3in}|p{0.9in}|p{0.9in}|p{0.8in}|} hline 

multicolumn{2}{|c|}{multirow{2}{*}{$P_mathrm{batt}$}} &                                                   

  multicolumn{3}{|c|}{$P_mathrm{mot}$ }  \ cline{3-5} 

multicolumn{2}{|c|}{}   & S & M & H \ cline{1-5} 

multirow{3}{*}{SOC} & S & S & Z & VS \ cline{2-5} 

 & M & M & Z & H \ cline{2-5} 

 & H & M & Z & H \ hline 

end{tabular}

end{document}

Whatever applies to each item in a column should go in the column header. Here's my proposal:

documentclass[twocolumn]{article}

usepackage{array,booktabs}



usepackage{lipsum} % for context



begin{document}



lipsum[2]



begin{table}[htp]

centering



begin{tabular}{ @{} *{4}{w{c}{3em}} @{} }

toprule

$P_{mathrm{batt}}$ & multicolumn{3}{c}{$P_{mathrm{mot}}$} \

cmidrule(r){1-1} cmidrule(l){2-4}

SOC & S & M & H \

midrule 

S & S & Z & VS \

M & M & Z & H \

H & M & Z & H \ 

bottomrule

end{tabular}



caption{Rule based of fuzzy logic control}



end{table}



lipsum



end{document}