Cfrgtkky

I have code for a table to be drawn. It is almost what I want. I am requesting three modifications to be made to it.

I would like vertical lines, forming the left and right edges of the table, to be drawn. These lines together with the horizontal line above the title and the horizontal line after the last row of the table should make a rectangle.

There are two vertical lines separating the three columns. I would like the vertical line separating the first column from the other two columns to be either 1.5 times thicker than the vertical line separating the second and third column and the vertical lines forming the left and right edges of the table. (In the code provided, two parallel lines drawn close to each other separate the first and second columns.)

The data - certain percentages - should be horizontally centered in their rows.

documentclass{amsart}



usepackage{array}

newcolumntype{C}[1]{>{centeringletnewline\arraybackslashhspace{0pt}}m{#1}}



begin{document}





begin{center}

begin{tabular}{l||r|r}

hline

multicolumn{3}{c}{textbf{---Title is Lengthy --- Here is First Line}}\

multicolumn{3}{c}{textbf{Here is Second Line}} \ hlinehline

textbf{Class}&multicolumn{1}{C{1.5in}|}{textbf{Percent Present in Habitat A}}&multicolumn{1}{C{1.75in}}{textbf{Percent Present in Habitat B}}\hline



textbf{Mammals}                        &                   &               \

hspace*{1em}Dog                        &   20%            &   5%         \

hspace*{1em}Cow                        &   10%            &   7%         \ hline

textbf{Bird}                           &                   &               \

hspace*{1em}Peacock                    &   15%            &   25%        \ hline

hspace*{1em}Turkey                     &   25%            &   40%        \ hline

textbf{Animals}                        &   textbf{3%}    &   textbf{5%}    \

hline

end{tabular}

end{center}



end{document}

For the thicker vertical line, you have the boldline package which does exactly what you want, with syntax V{num} in the table preamble to obtain a vertical rule with thickness num times arrayrulewidth.

Other than that, I simplified a bit your code, and propose two variants,– the second with the thead command, from makecell, which allows for line breaks within standard columns and a common formatting. Furthermore, the content of thead is centred by default, both vertically and horizontally.

documentclass{amsart}



usepackage{array}

usepackage{boldline}usepackage{makecell}

renewcommand{theadfont} {normalsizebfseries}





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

setlength{extrarowheight}{3pt}



begin{document}





begin{center}

begin{tabular}{|lV{1.5}c|c|}

hline

multicolumn{3}{|c|}{textbf{---Title is Lengthy --- Here is First Line}}\

multicolumn{3}{|c|}{textbf{Here is Second Line}} \ hlinehline

textbf{Class}&multicolumn{1}{C{1.5in}|}{textbf{Percent Present in Habitat A}}&multicolumn{1}{C{1.75in}|}{textbf{Percent Present in Habitat B}}\hline



textbf{Mammals} & & \

quad Dog & 20% & 5% \

quad Cow & 10% & 7% \ hline

textbf{Bird} & & \

quad Peacock & 15% & 25% \ hline

quad Turkey & 25% & 40% \ hline

textbf{Animals} & textbf{3%} & textbf{5%} \

hline

end{tabular}

end{center}

vskip 1cm



begin{center}

begin{tabular}{|lV{1.5}c|c|}

hline

multicolumn{3}{|c|}{thead{---Title is Lengthy --- Here is First Line\ Here is Second Line}} \ hlinehline

textbf{Class}&thead{Percent Present in \ Habitat A} &thead{Percent Present in \ Habitat B}\hline



textbf{Mammals} & & \

quad Dog & 20% & 5% \

quad Cow & 10% & 7% \ hline

textbf{Bird} & & \

quad Peacock & 15% & 25% \ hline

quad Turkey & 25% & 40% \ hline

textbf{Animals} & textbf{3%} & textbf{5%} \

hline

end{tabular}

end{center}



end{document} 

To have an unboxed title, and a bigger vertical spacing between the title and the first horizontal line, you can use this code:

    begin{tabular}{|lV{1.5}c|c|}

    multicolumn{3}{c}{thead{---Title is Lengthy --- Here is First Line\ Here is Second Line}} \

    noalign{vspace{2ex}}hline

    textbf{Class}&thead{Percent Present in \ Habitat A} & thead{Percent Present in \ Habitat B}\ hline

    textbf{Mammals} & & \

    quad Dog & 20% & 5% \

    quad Cow & 10% & 7% \ hline

    textbf{Bird} & & \

    quad Peacock & 15% & 25% \ hline

    quad Turkey & 25% & 40% \ hline

    textbf{Animals} & textbf{3%} & textbf{5%} \

    hline

    end{tabular}