[Tex/LaTex] Using \footnotemark with letters

footnotesnumbering

There are many answers to questions about \footnotemark, but I couldn't find one to mine. I have the following code and it works fine. What I need to use is \footnotemark [a] instead of \footnotemark [1], but I always get an error. Is it a \usepackage problem?

\begin{table}[thb!]
\centering
\caption[Sample table]{Params}
\label{tab:params}
\vspace{0.5 cm}
\begin{tabular}[width=0.5\columnwidth]{|c|c|c|}\hline
\textbf{Params}& \textbf{Description} & \textbf{Values }\\\hline
\textbf{$x$} & high  & $2$ $\left[\frac{mol}{h}\right]$\footnotemark [1]\\\hline
\textbf{$y$} & low & $0.2$ $\left[\frac{mol}{h}\right]$\footnotemark [2]\\\hline
\end{tabular}
\end{table}
\footnotetext [1]{parameter value are taken from \cite{bla}.}
\footnotetext [2]{parameter value are taken from \cite{blabla}}

Best Answer

I believe your table may be typeset quite easily with the help of a threeparttable environment:

enter image description here

\documentclass{article}
\usepackage{threeparttable}
\begin{document}
\begin{table}
\centering
   \begin{threeparttable}
   \caption[Sample table]{Params}
   \label{tab:params}
   \vspace{0.5 cm}
   \begin{tabular}{|c|c|c|}\hline
      \textbf{Params}& \textbf{Description} & \textbf{Values }\\\hline
      $\mathbf{x}$ & high  & $2$ $\left[\frac{mol}{h}\right]$\tnote{\emph{a}}\\\hline
      $\mathbf{y}$ & low & $0.2$ $\left[\frac{mol}{h}\right]$\tnote{\emph{b}}\\\hline
   \end{tabular}
   \begin{tablenotes}
      \footnotesize
      \item[\emph{a}]{parameter values are taken from \cite{bla}.}
      \item[\emph{b}]{parameter values are taken from \cite{blabla}}
   \end{tablenotes}
   \end{threeparttable}
\end{table}
\end{document}

As the image demonstrates, the footnotes will be set directly below the table. I can't tell from your posting if this is something you want (or possibly don't want). In my experience, if a page has both a table and running text and both contain footnotes, it's almost invariably a good idea to place the table-related footnotes immediately below the table -- as long as the table isn't set at the very bottom of the page, I suppose...

Note that the widths of the first and third parts (caption and footnotes) of the three-part table are automatically set to the width of the second part -- the tabular (or tabular*, tabularx, etc.) environment.

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