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My apologies if this has been asked multiple times in the past. But I'm quite new to LateX and have been trying to write a lab report with it. All had been going well until I was trying to create this kind of table.
On another note, is there any possible way to move the table as I please? (the table keeps floating to where ever seems fit but not where I want it).
You can use siunitx and, possibly, booktabs.
\documentclass{article}
\usepackage{siunitx,booktabs} % beautiful tables
\DeclareSIUnit{\rpm}{rpm}
\begin{document}
\begin{table}[htp]
\centering
\begin{tabular}{
S[table-format=1.3]
S[table-format=1.2]
S[table-format=3.0]
S[table-format=1.2]
S[table-format=1.3]
S[table-format=3.0]
}
\toprule
\multicolumn{3}{c}{$I_L=\SI{0.8}{\ampere}$} &
\multicolumn{3}{c}{$I_L=\SI{1.5}{\ampere}$} \\
\multicolumn{3}{c}{$T=\SI{3.46}{\newton\metre}$, $\omega=\SI{1500}{\rpm}$} &
\multicolumn{3}{c}{$T=\SI{4.35}{\newton\metre}$, $\omega=\SI{1500}{\rpm}$} \\
\cmidrule(lr){1-3} \cmidrule(lr){4-6}
{$I_A$ (\si{\ampere})} &
{$I_f$ (\si{\ampere})} &
{$P_{\mathrm{in}}$ (\si{\watt})} &
{$I_A$ (\si{\ampere})} &
{$I_f$ (\si{\ampere})} &
{$P_{\mathrm{in}}$ (\si{\watt})} \\
\midrule
1.84 & 0.3 & 378 & 2.2 & 0.38 & 532 \\
1.54 & 0.4 & 380 & 1.9 & 0.45 & 527 \\
1.25 & 0.5 & 375 & 1.65 & 0.55 & 527 \\
1.14 & 0.6 & 384 & 1.57 & 0.65 & 530 \\
1.145 & 0.65 & 384 & 1.63 & 0.75 & 530 \\
\bottomrule
\end{tabular}
\caption{Load $V$-curves test}
\end{table}
\end{document}
Note how the units are specified, in a uniform style which is consistent with BIPM rules for the International System.
There's generally no need to print headers boldface, they're already prominent enough.
Avoid worksheet-like rules: they're good for presenting data on a computer screen, when one has to work with them. For handouts and print, they're just of a hindrance.
\cmidrules instead of your \midrule that "connects" the two separate measurements (and I just don't like this connection).
\cmidrule above joins the three subheaders with the respective main headers.
;-)\begin{table[!htb]. You also have the[H](meaning: ‘here and nowhere else’), from thefloatpackage, but it might yield huge vertical spacing. Other than this, could you post a compilable code?tabularmakes the layout you show and will never move anywhere. You may have put it in atableenvironment. The only purpose of atableenvironment is to specify that its content may be moved to help with page breaking.