Footnote in tabular environment

Question

It seems as if footnotes would have only a problem with the table environment but in my minimal example non of those answers

• Footnotes in Tabulars?
• Footnote in table

seem to work for the tabular environment.

\documentclass{scrartcl}

\begin{document}
\begin{tabular}{l}
Content\footnote{Footnote}
\end{tabular}
\end{document}

Answer 1

another possibility is with the footnote package and \makesavenoteenv{tabular}:

\documentclass{scrartcl}
\usepackage{footnote}
\makesavenoteenv{tabular}
\begin{document}
\begin{tabular}{l}
Content\footnote{footnote text}
\end{tabular}
\end{document}

If one has both tabular-only environment and tabular inside table, it is possibile to load both \makesavenoteenv{tabular} and \makesavenoteenv{table} in the preamble, like this:

\documentclass{scrartcl}
\usepackage{footnote}
\makesavenoteenv{tabular}
\makesavenoteenv{table}
\begin{document}
\begin{table}
\begin{tabular}{l}
Content\footnote{footnote text}
\end{tabular}
\end{table}
\begin{tabular}{l}
Content\footnote{footnote text}
\end{tabular}
\end{document}

So to have a more general solution.

Also, a fairly comprehensive list of solutions can be found inside the documentation for the tablefootnotepackage, starting from page 3, section "Alternatives".

Answer 2

For some reason (my preferred choice) the tablefootnote package only works if you wrap the tabular in a table float. A way around is to use \footnotemark and \footnotetext:

\documentclass{scrartcl}

\begin{document}    
before

\begin{tabular}{l}
Content\footnotemark\\
Content continued\footnotemark\\
Content continued further\footnotemark
\end{tabular}
\footnotetext[1]{Footnote}
\footnotetext[2]{Second footnote}
\footnotetext{Third footnote}

after
\end{document}

Note how manual numbering of all but the first footnotetext is necessary. In a longer document, an approach with manually decrementing and incrementing the footnote number might be more viable; that way, the only way you have to watch out for is decrementing by the correct number:

\documentclass{scrartcl}
\begin{document}    
before

\begin{tabular}{l}
Content\footnotemark\\
Content continued\footnotemark\\
Content continued further\footnotemark
\end{tabular}
\addtocounter{footnote}{-2}
\footnotetext[1]{Footnote}
\addtocounter{footnote}{1}
\footnotetext{Second footnote}
\addtocounter{footnote}{1}
\footnotetext{Third footnote}

after
\end{document}

Answer 3

You can also use threeparttable package to insert footnotes in the tables.

\documentclass{article}
\usepackage[flushleft]{threeparttable}
\begin{document}
\begin{table}[h]
\caption{Example of test session results}
\label{tab:test_results}
\centering
\begin{threeparttable}
  \begin{tabular}{|l|l|l|}
    \hline
    Mutants & CPU\tnote{1}     & Memory\tnote{2}    \\ \hline
    Mutant-1   & 23 & 15 \\ \hline
    Mutant-2   & 32 & 11 \\ \hline
  \end{tabular}
  \begin{tablenotes}
    \item[1] Measured in percentages.
    \item[2] Measured in kilobytes (KB).
  \end{tablenotes}
\end{threeparttable}
\end{table}
\end{document}

Output:

Answer 4

If you use bidiftnxtra (a part of bidi package), all combinations of table and tabular will work. Ofcourse, this only work if you are using xelatex but the approach can be ported to other packages too:

\documentclass{scrartcl}
\usepackage{bidi}
\usepackage{bidiftnxtra}
\begin{document}
\begin{tabular}{l}
Content\footnote{Footnote}
\end{tabular}

\begin{table}[h]
\centering
\begin{tabular}{l}
Content\footnote{Footnote}
\end{tabular}
\caption{This is a caption\footnote{Another footnote.}}
\end{table}
\end{document}

Answer 5

I insert footnotes manually at the bottom of the table, which is pretty simple and requires no additional package:

\begin{table}
\caption{The Table.}
\centering
  \begin{tabular}{lrr}
   \hline
          & Variable A & Variable B \\
   \hline
      Item 1        & 234.5 & 678.9 \\
      Item 2~$^{1}$ & 432.1 & 876.5 \\
   \hline
   \multicolumn{3}{l}{$^{1}$\footnotesize{Here is a footnote.}} \\
  \end{tabular}
\end{table}

Answer 6

I particularly like @CountZero's answer, yet it may happen that your footnote mark is on a different page than your footnote text. In that case, you can move around the \footnotetext to solve that, but how do you become aware of it in the first place?

This code will issue a warning when that happens:

\documentclass{article}

% works with hyperref, too:
% \usepackage{hyperref}

% Footnotes in table with page-number check
\usepackage{refcount}
\newcommand{\myfootnotemark}{\footnotemark\label{fn:mark}}
\newcommand{\myfootnotetext}[1]{\footnotetext{#1\label{fn:text}%
        \edef\fnmark{\getpagerefnumber{fn:mark}}%
        \edef\fntext{\getpagerefnumber{fn:text}}%
        \ifx\fnmark\fntext\else\ClassWarning{}{footnote mark and text on different pages!}\fi}}

\begin{document}
    \begin{tabular}{l}
%       Table stuff \footnote{This does not work: the footnote is missing.}
        Table stuff \myfootnotemark
    \end{tabular}

% uncomment to see the warning:
% \pagebreak

\myfootnotetext{So we do this instead!}

\end{document}

It works only for a single \footnotemark/\footnotetext pair so far, but extension should not be too difficult and those who use this weird hack more than once in a document are hopefully apt enough to adapt my code accordingly :)

Answer 7

An alternative solution with talltblr environment of tabularray package:

\documentclass{article}

\usepackage{hyperref}
\hypersetup{colorlinks}

\usepackage{tabularray}

\begin{document}

\begin{table}[!htbp]
\centering
\begin{talltblr}[
  caption = {Long Long Long Long Tabular},
  note{a} = {It is the first footnote.},
  note{b} = {It is the second long long long long long long footnote.},
]{
  colspec = {XXX}, width = 0.8\linewidth, hlines,
}
 Alpha   & Beta & Gamma\TblrNote{a} \\
 Epsilon & Zeta & Eta   \\
 Iota    & Kapp & Lambdaa\TblrNote{b} \\
\end{talltblr}
\end{table}

\end{document}