Is there a simple, elegant solution to add footnotes in a table (tabular)? Preferably, the solution can also support the cleveref package.
EDIT: My intended effect is that, the footnotes should be displayed at the bottom of the page, just as regular footnotes are. However, I've checked out ctable package but found no such feature. Am I missing something?
The usual advice is not to have 'standard' footnotes in tables: if the float ends up on a different page to the footnotes then things are very confusing. With that important proviso, an approach which can be taken is to save the footnotes in the table environment and reinsert them afterwards. You could overwrite the standard \footnote macro to do this, but I feel it's best not to. A possible approach:
\documentclass{article}
\newcommand*{\savedfootnotes}{}
\newcommand*{\resetsavedfootnotes}{\global\let\savedfootnotes\empty}
\newcommand{\tablefootnote}[1]%
{%
\footnotemark
\xdef\savedfootnotes%
{\unexpanded\expandafter{\savedfootnotes}\noexpand\footnotetext{#1}}%
}
\edef\endtable%
{%
\aftergroup\noexpand\savedfootnotes
\aftergroup\noexpand\resetsavedfootnotes
\unexpanded\expandafter{\endtable}%
}
\usepackage{lipsum}
\begin{document}
\lipsum[1]
\begin{table}
\begin{tabular}{c}
A \\
B\tablefootnote{Stuff} \\
\end{tabular}
\end{table}
\end{document}
\noexpand\footnotetext{\unexpanded{#1}}, shouldn't it? Or, easier, \unexpanded{\footnotetext{#1}}
Use the tablefootnote package and \tablefootnote{...} inside the table:
\documentclass{article}
\usepackage{hyperref}
\usepackage{tablefootnote}
\begin{document}
\begin{table}
\centering
\begin{tabular}{ c c }
Test1\tablefootnote{Footnote 1} & Test2\tablefootnote{Footnote 2} \\
\end{tabular}
\caption{This is a table.\label{FirstTable}}
\end{table}
A pagebreak:
\pagebreak
and a second page, so that you can see that the hyperlinks really work.
\end{document}
\listfiles result:
*File List*
article.cls 2007/10/19 v1.4h Standard LaTeX document class
size10.clo 2007/10/19 v1.4h Standard LaTeX file (size option)
float.sty 2001/11/08 v1.3d Float enhancements (AL)
placeins.sty 2005/04/18 v 2.2
rotating.sty 2009/03/28 v2.16a rotated objects in LaTeX
graphicx.sty 1999/02/16 v1.0f Enhanced LaTeX Graphics (DPC,SPQR)
keyval.sty 1999/03/16 v1.13 key=value parser (DPC)
graphics.sty 2009/02/05 v1.0o Standard LaTeX Graphics (DPC,SPQR)
trig.sty 1999/03/16 v1.09 sin cos tan (DPC)
graphics.cfg 2010/04/23 v1.9 graphics configuration of TeX Live
pdftex.def 2011/05/27 v0.06d Graphics/color for pdfTeX
infwarerr.sty 2010/04/08 v1.3 Providing info/warning/message (HO)
ltxcmds.sty 2011/04/18 v1.20 LaTeX kernel commands for general use (HO)
ifthen.sty 2001/05/26 v1.1c Standard LaTeX ifthen package (DPC)
hyperref.sty 2011/12/04 v6.82m Hypertext links for LaTeX
hobsub-hyperref.sty 2011/04/23 v1.4 Subsetting bundle oberdiek (HO)
hobsub-generic.sty 2011/04/23 v1.4 Bundle oberdiek, subset generic (HO)
hobsub.sty 2011/04/23 v1.4 Subsetting bundle oberdiek (HO)
ifluatex.sty 2010/03/01 v1.3 Provides the ifluatex switch (HO)
ifvtex.sty 2010/03/01 v1.5 Detect VTeX and its facilities (HO)
intcalc.sty 2007/09/27 v1.1 Expandable calculations with integers (HO)
ifpdf.sty 2011/01/30 v2.3 Provides the ifpdf switch (HO)
etexcmds.sty 2011/02/16 v1.5 Avoid name clashes with e-TeX commands (HO)
kvsetkeys.sty 2011/06/15 v1.14 Key value parser (HO)
kvdefinekeys.sty 2011/04/07 v1.3 Define keys (HO)
pdftexcmds.sty 2011/07/28 v0.19 Utility functions of pdfTeX for LuaTeX (HO)
pdfescape.sty 2011/04/04 v1.12 Implements pdfTeX's escape features (HO)
bigintcalc.sty 2011/01/30 v1.2 Expandable calculations on big integers (HO)
bitset.sty 2011/01/30 v1.1 Handle bit-vector datatype (HO)
uniquecounter.sty 2011/01/30 v1.2 Provide unlimited unique counter (HO)
letltxmacro.sty 2010/09/02 v1.4 Let assignment for LaTeX macros (HO)
hopatch.sty 2011/06/24 v1.1 Wrapper for package hooks (HO)
xcolor-patch.sty 2011/01/30 xcolor patch
atveryend.sty 2011/04/23 v1.7 Hooks at very end of document (HO)
atbegshi.sty 2011/01/30 v1.15 At begin shipout hook (HO)
refcount.sty 2011/06/22 v3.3 Data extraction from label references (HO)
hycolor.sty 2011/01/30 v1.7 Color options for hyperref/bookmark (HO)
ifxetex.sty 2010/09/12 v0.6 Provides ifxetex conditional
kvoptions.sty 2010/12/23 v3.10 Keyval support for LaTeX options (HO)
pd1enc.def 2011/12/04 v6.82m Hyperref: PDFDocEncoding definition (HO)
hyperref.cfg 2002/06/06 v1.2 hyperref configuration of TeXLive
url.sty 2006/04/12 v3.3 Verb mode for urls, etc.
hpdftex.def 2011/12/04 v6.82m Hyperref driver for pdfTeX
rerunfilecheck.sty 2011/04/15 v1.7 Rerun checks for auxiliary files (HO)
tablefootnote.sty 2012/01/01 v1.0f Table foot notes (HMM)
etoolbox.sty 2011/01/03 v2.1 e-TeX tools for LaTeX
etex.sty 1998/03/26 v2.0 eTeX basic definition package (PEB)
supp-pdf.mkii
epstopdf-base.sty 2010/02/09 v2.5 Base part for package epstopdf
grfext.sty 2010/08/19 v1.1 Managing graphics extensions (HO)
epstopdf-sys.cfg 2010/07/13 v1.3 Configuration of (r)epstopdf for TeX Live
nameref.sty 2010/04/30 v2.40 Cross-referencing by name of section
gettitlestring.sty 2010/12/03 v1.4 Cleanup title references (HO)
initexmf --update-fndb, neither pdflatex nor latex could compile. I'm using MikTex. Have any ideas?
\numexpr tablefootnote requires e-TeX. That is included in MikTex, isn't it? Placing \listfiles before \begin{document} will list the used files, including etex.sty (if found!) at the end of the log-file. I'll add the result I got at the end of the answer. 3. Was there an error-message given? Which one?
\listfiles result of the (pdflatex) compiled tablefootnote-example.tex, which is provided by the package. Please check whether compilation is possible for you now. (In the file list etexcmds.sty, etoolbox.sty, and etex.sty are contained, because eTeX was availabe.)
Use ftnxtra package:
\documentclass{article}
\let\mytabular\tabular
\let\endmytabular\endtabular
\usepackage{ftnxtra}
\let\tabular\mytabular
\let\endtabular\endmytabular
\begin{document}
\begin{table}
\centering
\begin{tabular}{|c|c|}\hline
One&Two\\ \hline
Three\footnote{This is a footnote.}&Four\\ \hline
\end{tabular}
\caption{This is a table.}
\end{table}
\end{document}
Very simple, low effort but not elegant solution:
I also had the same problem and tried for some time. I settled on manually putting in \footnotemark in the table and outside of the table environment \addtocounter{footnote}{1} and \footnotetext{Text of the Footnote}.
Although this is not the nicest version it works without spending too much time on getting macros to work etc.
MWE:
\documentclass{article}
\begin{document}
\begin{table}
\centering
\begin{tabular}{|c|c|}\hline
One&Two\\ \hline
Three\protect\footnotemark&Four\protect\footnotemark\\ \hline
\end{tabular}
\caption{This is a table.}
\end{table}
\addtocounter{footnote}{-1}
\footnotetext{Text in the footnote}
\addtocounter{footnote}{1}
\footnotetext{Other text in the footnote}
\end{document}
Depending on how many footnotes you have in the table, you have to play around with the first \addtocounter{footnote}{x} command where x depends on the amount of footnotes in the table. For all the other it is \addtocounter{footnote}{1}
I have successfully used the ctable package. It provides a way to display tables and is a sort of combination of the table and tabular environment. Infact it is using the tabular environment, but it is not an extension to that itself.
Maybe you can specify in more detail what you want to do. Do you want to have the tabular inside of a table floating environment? Do you expect the footnotes to appear at the bottom of the table or at the bottom of the page or even at the end of the chapter/book?
EDIT: As Joseph Wright already mention, the footnotes in a table or figure should be a visible belong to the table or figure. As far as I know the ctable package only supports such 'table notes'. In this FAQ the author mention some technics to achieve footnotes at the bottom. I haven't tried one of them, so I cannot tell you which one works best.
tabular inside a table. And the footnotes should appear at the bottom of that page (just as regular footnotes do).