[Tex/LaTex] \midrule before \endhead in longtable environment with booktabs package

booktabsheader-footerlongtable

I am trying to use longtable with repeating headers on each page. For example:

Column 1 & Column 2 & Column 3 \endhead \midrule

results in an ugly multi-page table. The horizontal rule separating the headers from the data appears only on the first page.

In an attempt to fix it:

Column 1 & Column 2 & Column 3 \midrule \endhead

I'd get the following error upon compile:

! Misplaced \noalign.
\midrule ->\noalign 
                    {\ifnum 0=`}\fi \@aboverulesep =\aboverulesep \global \@...
l.6 ...) & Column 2 & Column 3 \midrule
                                                   \endhead

How do I make the horizontal rule also appear on every page?

Here's a screenshot of the part of the manual where \endhead is described:
alt text

Best Answer

It seems that you simply forgot the double \\

\documentclass{article}
\usepackage{geometry}
\geometry{paperwidth=5cm,paperheight=5cm}%a very small page
\usepackage{longtable,booktabs}
\begin{document}
    \pagestyle{empty}
    \begin{longtable}{ll}
        \caption{My longtable} \\   \toprule
        col 1 &col 2  \\ \midrule
        \endfirsthead
        \toprule
        col 1 & col 2 \\ \midrule
        \endhead
        \hline
        \multicolumn{2}{c}{Continued}\\   \bottomrule
        \endfoot
        \bottomrule
        \endlastfoot
        1 & 2\\   1 & 2\\   1 & 2\\   1 & 2\\   1 & 2\\   1 & 2\\   1 & 2\\   1 & 2\\   
    \end{longtable}

\end{document}

alt text

Related Solutions

[Tex/LaTex] ‘longtable’ and ‘booktabs’ not working on this example

By placing the longtable in a float you're preventing it from breaking across pages. In addition, I believe that longtables are centered by default, so you don't need \centering. To let longtable do its job, just remove the \begin{table} and \end{table} pair (and the \centering command):

\documentclass[11pt,a4paper]{report}
\usepackage{rotating,multirow,longtable,booktabs}
%Add \endfirstfoot support http://tex.stackexchange.com/questions/68439/caption-at-foot-of-long-tables-longtable-package
\makeatletter
\newbox\LT@firstfoot
\def\endfirstfoot{\LT@end@hd@ft\LT@firstfoot}
\newdimen\LT@footdiff
\def\LT@start{%
  \let\LT@start\endgraf
  \endgraf\penalty\z@
  \vskip\LTpre
  \LT@footdiff-\ht\LT@foot
  \advance\LT@footdiff\ht\LT@firstfoot
  \dimen@\pagetotal
  \advance\dimen@ \ht\ifvoid\LT@firsthead\LT@head\else\LT@firsthead\fi
  \advance\dimen@ \dp\ifvoid\LT@firsthead\LT@head\else\LT@firsthead\fi
  \advance\dimen@ \ht\ifvoid\LT@firstfoot\LT@foot\else\LT@firstfoot\fi
  \dimen@ii\vfuzz
  \vfuzz\maxdimen
  \setbox\tw@\copy\z@
  \setbox\tw@\vsplit\tw@ to \ht\@arstrutbox
  \setbox\tw@\vbox{\unvbox\tw@}%
  \vfuzz\dimen@ii
  \advance\dimen@ \ht
      \ifdim\ht\@arstrutbox>\ht\tw@\@arstrutbox\else\tw@\fi
  \advance\dimen@\dp
      \ifdim\dp\@arstrutbox>\dp\tw@\@arstrutbox\else\tw@\fi
  \advance\dimen@ -\pagegoal
  \ifdim \dimen@>\z@\vfil\break\fi
  \global\@colroom\@colht
  \ifvoid\LT@firstfoot
    \ifvoid\LT@foot
    \else
      \advance\vsize-\ht\LT@foot
      \global\advance\@colroom-\ht\LT@foot
      \dimen@\pagegoal\advance\dimen@-\ht\LT@foot\pagegoal\dimen@
      \maxdepth\z@
    \fi
  \else
    \advance\vsize-\ht\LT@firstfoot
    \global\advance\@colroom-\ht\LT@firstfoot
    \dimen@\pagegoal\advance\dimen@-\ht\LT@firstfoot\pagegoal\dimen@
    \maxdepth\z@
  \fi
  \ifvoid\LT@firsthead\copy\LT@head\else\box\LT@firsthead\fi\nobreak
  \output{\LT@output}%
}
\def\LT@output{%
  \ifnum\outputpenalty <-\@Mi
    \ifnum\outputpenalty > -\LT@end@pen
      \LT@err{floats and marginpars not allowed in a longtable}\@ehc
    \else
      \setbox\z@\vbox{\unvbox\@cclv}%
      \ifdim \ht\LT@lastfoot>\ht\LT@foot
        \dimen@\pagegoal
        \advance\dimen@-\ht\LT@lastfoot
        \ifdim\dimen@<\ht\z@
          \setbox\@cclv\vbox{\unvbox\z@\copy\LT@foot\vss}%
          \@makecol
          \@outputpage
          \setbox\z@\vbox{\box\LT@head}%
        \fi
      \fi  
      \global\@colroom\@colht
      \global\vsize\@colht   
      \vbox
        {\unvbox\z@\box\ifvoid\LT@lastfoot\LT@foot\else\LT@lastfoot\fi}%
    \fi
  \else
    \ifvoid\LT@firstfoot
      \setbox\@cclv\vbox{\unvbox\@cclv\copy\LT@foot\vss}%
      \@makecol
      \@outputpage
      \global\vsize\@colroom
    \else
      \setbox\@cclv\vbox{\unvbox\@cclv\box\LT@firstfoot\vss}%
      \@makecol
      \@outputpage
      \global\advance\@colroom\LT@footdiff
      \global\vsize\@colroom
    \fi
    \copy\LT@head\nobreak
  \fi
}
\makeatother
\begin{document}
% Table generated by Excel2LaTeX from sheet 'Sheet1'
    \begin{longtable}{rrrrrrrrrrrrrrrrr}
    \toprule \endfirsthead 
    \toprule \endhead
    \bottomrule
    \caption{Add caption}\label{tbl:ch7a_config}\\% 
    \endfirstfoot
    \bottomrule
    \caption[]{(continued)}\\% 
    \endfoot
    \bottomrule
    \caption[]{(continued)}\\%     
    \endlastfoot
    \multicolumn{2}{r}{\textbf{ID}} & \begin{sideways}\textbf{1}\end{sideways} & \begin{sideways}\textbf{2}\end{sideways} & \begin{sideways}\textbf{3}\end{sideways} & \begin{sideways}\textbf{4}\end{sideways} & \begin{sideways}\textbf{5}\end{sideways} & \begin{sideways}\textbf{6}\end{sideways} & \begin{sideways}\textbf{7}\end{sideways} & \begin{sideways}\textbf{8}\end{sideways} & \begin{sideways}\textbf{9}\end{sideways} & \begin{sideways}\textbf{10}\end{sideways} & \begin{sideways}\textbf{11}\end{sideways} & \begin{sideways}\textbf{12}\end{sideways} & \begin{sideways}\textbf{13}\end{sideways} & \begin{sideways}\textbf{14}\end{sideways} & \begin{sideways}\textbf{15}\end{sideways} \\*
    \midrule
    \multicolumn{1}{c}{\multirow{4}[0]{*}{\begin{sideways}\textbf{Zeros}\end{sideways}}} & \textit{z1} & 1     & 1     & 1     & 2     & 1     & 1     & 2     & 2     & 1     & 2     & 1     & 2     & 1     & 1     & 1 \\*
    \multicolumn{1}{c}{} & \textit{z2} & 1     & 1     & 2     & 1     & 2     & 2     & 1     & 1     & 2     & 1     & 1     & 2     & 1     & 1     & 1 \\*
    \multicolumn{1}{c}{} & \textit{z34} & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 2     & 1     & 1 \\*
    \multicolumn{1}{c}{} & \textit{z56} & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 2     & 1     & 1     & 2     & 2 \\*
    \multicolumn{1}{c}{\multirow{4}[0]{*}{\begin{sideways}\textbf{Poles}\end{sideways}}} & \textit{p1} & 1     & 2     & 1     & 1     & 1     & 2     & 1     & 2     & 2     & 2     & 1     & 1     & 1     & 1     & 1 \\*
    \multicolumn{1}{c}{} & \textit{p2} & 1     & 2     & 1     & 1     & 2     & 1     & 2     & 1     & 2     & 2     & 1     & 1     & 1     & 1     & 1 \\*
    \multicolumn{1}{c}{} & \textit{p34} & 1     & 2     & 1     & 1     & 1     & 1     & 1     & 1     & 2     & 2     & 1     & 1     & 1     & 1     & 2 \\*
    \multicolumn{1}{c}{} & \textit{p56} & 1     & 2     & 1     & 1     & 1     & 1     & 1     & 1     & 2     & 2     & 1     & 1     & 1     & 2     & 1 \\ \midrule
    \multicolumn{2}{r}{\textbf{ID}} & \begin{sideways}\textbf{16}\end{sideways} & \begin{sideways}\textbf{17}\end{sideways} & \begin{sideways}\textbf{18}\end{sideways} & \begin{sideways}\textbf{19}\end{sideways} & \begin{sideways}\textbf{20}\end{sideways} & \begin{sideways}\textbf{21}\end{sideways} & \begin{sideways}\textbf{22}\end{sideways} & \begin{sideways}\textbf{23}\end{sideways} & \begin{sideways}\textbf{24}\end{sideways} & \begin{sideways}\textbf{25}\end{sideways} & \begin{sideways}\textbf{26}\end{sideways} & \begin{sideways}\textbf{27}\end{sideways} & \begin{sideways}\textbf{28}\end{sideways} & \begin{sideways}\textbf{29}\end{sideways} & \begin{sideways}\textbf{30}\end{sideways} \\* \midrule
    \multicolumn{1}{c}{\multirow{4}[0]{*}{\begin{sideways}\textbf{Zeros}\end{sideways}}} & \textit{z1} & 1     & 1     & 2     & 2     & 2     & 1     & 1     & 1     & 2     & 1     & 1     & 2     & 1     & 2     & 1 \\*
    \multicolumn{1}{c}{} & \textit{z2} & 1     & 1     & 2     & 2     & 2     & 1     & 1     & 1     & 2     & 1     & 2     & 1     & 2     & 1     & 2 \\*
    \multicolumn{1}{c}{} & \textit{z34} & 1     & 2     & 1     & 1     & 1     & 2     & 2     & 1     & 1     & 2     & 1     & 1     & 2     & 2     & 1 \\*
    \multicolumn{1}{c}{} & \textit{z56} & 2     & 1     & 1     & 1     & 1     & 1     & 1     & 2     & 1     & 1     & 2     & 2     & 1     & 1     & 2 \\*
    \multicolumn{1}{c}{\multirow{4}[0]{*}{\begin{sideways}\textbf{Poles}\end{sideways}}} & \textit{p1} & 2     & 2     & 1     & 1     & 2     & 1     & 1     & 2     & 2     & 2     & 1     & 1     & 1     & 1     & 1 \\*
    \multicolumn{1}{c}{} & \textit{p2} & 2     & 2     & 1     & 1     & 2     & 1     & 1     & 2     & 2     & 2     & 1     & 1     & 1     & 1     & 2 \\*
    \multicolumn{1}{c}{} & \textit{p34} & 1     & 1     & 1     & 2     & 1     & 1     & 2     & 2     & 2     & 2     & 1     & 1     & 1     & 1     & 1 \\*
    \multicolumn{1}{c}{} & \textit{p56} & 1     & 1     & 2     & 1     & 1     & 2     & 1     & 2     & 2     & 2     & 1     & 1     & 1     & 1     & 2 \\ \midrule
    \multicolumn{2}{r}{\textbf{ID}} & \begin{sideways}\textbf{31}\end{sideways} & \begin{sideways}\textbf{32}\end{sideways} & \begin{sideways}\textbf{33}\end{sideways} & \begin{sideways}\textbf{34}\end{sideways} & \begin{sideways}\textbf{35}\end{sideways} & \begin{sideways}\textbf{36}\end{sideways} & \begin{sideways}\textbf{37}\end{sideways} & \begin{sideways}\textbf{38}\end{sideways} & \begin{sideways}\textbf{39}\end{sideways} & \begin{sideways}\textbf{40}\end{sideways} & \begin{sideways}\textbf{41}\end{sideways} & \begin{sideways}\textbf{42}\end{sideways} & \begin{sideways}\textbf{43}\end{sideways} & \begin{sideways}\textbf{44}\end{sideways} & \begin{sideways}\textbf{45}\end{sideways} \\* \midrule
    \multicolumn{1}{c}{\multirow{4}[0]{*}{\begin{sideways}\textbf{Zeros}\end{sideways}}} & \textit{z1} & 1     & 1     & 1     & 2     & 2     & 2     & 2     & 1     & 1     & 1     & 1     & 2     & 2     & 2     & 2 \\*
    \multicolumn{1}{c}{} & \textit{z2} & 2     & 2     & 2     & 1     & 1     & 1     & 1     & 2     & 2     & 2     & 2     & 1     & 1     & 1     & 1 \\*
    \multicolumn{1}{c}{} & \textit{z34} & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 2     & 2     & 2     & 2     & 2     & 2     & 2     & 2 \\*
    \multicolumn{1}{c}{} & \textit{z56} & 2     & 2     & 2     & 2     & 2     & 2     & 2     & 1     & 1     & 1     & 1     & 1     & 1     & 1     & 1 \\*
    \multicolumn{1}{c}{\multirow{4}[0]{*}{\begin{sideways}\textbf{Poles}\end{sideways}}} & \textit{p1} & 2     & 1     & 2     & 1     & 2     & 1     & 2     & 1     & 2     & 1     & 2     & 1     & 2     & 1     & 2 \\*
    \multicolumn{1}{c}{} & \textit{p2} & 1     & 2     & 1     & 2     & 1     & 2     & 1     & 2     & 1     & 2     & 1     & 2     & 1     & 2     & 1 \\*
    \multicolumn{1}{c}{} & \textit{p34} & 1     & 2     & 2     & 1     & 1     & 2     & 2     & 1     & 1     & 2     & 2     & 1     & 1     & 2     & 2 \\*
    \multicolumn{1}{c}{} & \textit{p56} & 2     & 1     & 1     & 2     & 2     & 1     & 1     & 2     & 2     & 1     & 1     & 2     & 2     & 1     & 1 \\ \midrule
    \multicolumn{2}{r}{\textbf{ID}} & \begin{sideways}\textbf{46}\end{sideways} & \begin{sideways}\textbf{47}\end{sideways} & \begin{sideways}\textbf{48}\end{sideways} & \begin{sideways}\textbf{49}\end{sideways} & \begin{sideways}\textbf{50}\end{sideways} & \begin{sideways}\textbf{51}\end{sideways} & \begin{sideways}\textbf{52}\end{sideways} & \begin{sideways}\textbf{53}\end{sideways} & \begin{sideways}\textbf{54}\end{sideways} & \begin{sideways}\textbf{55}\end{sideways} & \begin{sideways}\textbf{56}\end{sideways} & \begin{sideways}\textbf{57}\end{sideways} & \begin{sideways}\textbf{58}\end{sideways} & \begin{sideways}\textbf{59}\end{sideways} & \begin{sideways}\textbf{60}\end{sideways} \\* \midrule
    \multicolumn{1}{c}{\multirow{4}[0]{*}{\begin{sideways}\textbf{Zeros}\end{sideways}}} & \textit{z1} & 1     & 2     & 1     & 2     & 1     & 2     & 2     & 1     & 1     & 1     & 2     & 2     & 2     & 2     & 2 \\*
    \multicolumn{1}{c}{} & \textit{z2} & 2     & 1     & 2     & 1     & 1     & 2     & 2     & 1     & 1     & 1     & 2     & 2     & 2     & 2     & 2 \\*
    \multicolumn{1}{c}{} & \textit{z34} & 1     & 1     & 2     & 2     & 2     & 1     & 2     & 2     & 2     & 2     & 1     & 2     & 1     & 1     & 2 \\*
    \multicolumn{1}{c}{} & \textit{z56} & 2     & 2     & 1     & 1     & 2     & 2     & 1     & 2     & 2     & 2     & 2     & 1     & 2     & 2     & 1 \\*
    \multicolumn{1}{c}{\multirow{4}[0]{*}{\begin{sideways}\textbf{Poles}\end{sideways}}} & \textit{p1} & 2     & 2     & 2     & 2     & 1     & 1     & 1     & 1     & 2     & 2     & 1     & 1     & 2     & 2     & 2 \\*
    \multicolumn{1}{c}{} & \textit{p2} & 2     & 2     & 2     & 2     & 1     & 1     & 1     & 1     & 2     & 2     & 1     & 1     & 2     & 2     & 2 \\*
    \multicolumn{1}{c}{} & \textit{p34} & 2     & 2     & 2     & 2     & 1     & 1     & 1     & 2     & 1     & 2     & 2     & 2     & 1     & 2     & 1 \\*
    \multicolumn{1}{c}{} & \textit{p56} & 2     & 2     & 2     & 2     & 1     & 1     & 1     & 2     & 2     & 1     & 2     & 2     & 2     & 1     & 2 \\ \midrule
    \multicolumn{2}{r}{\textbf{ID}} & \begin{sideways}\textbf{61}\end{sideways} & \begin{sideways}\textbf{62}\end{sideways} & \begin{sideways}\textbf{63}\end{sideways} & \begin{sideways}\textbf{64}\end{sideways} & \begin{sideways}\textbf{65}\end{sideways} & \begin{sideways}\textbf{66}\end{sideways} & \begin{sideways}\textbf{67}\end{sideways} & \begin{sideways}\textbf{68}\end{sideways} & \begin{sideways}\textbf{69}\end{sideways} & \begin{sideways}\textbf{70}\end{sideways} & \begin{sideways}\textbf{71}\end{sideways} & \begin{sideways}\textbf{72}\end{sideways} & \begin{sideways}\textbf{73}\end{sideways} & \begin{sideways}\textbf{74}\end{sideways} & \\ \midrule
    \multicolumn{1}{c}{\multirow{4}[0]{*}{\begin{sideways}\textbf{Zeros}\end{sideways}}} & \textit{z1} & 2     & 1     & 2     & 2     & 1     & 2     & 1     & 1     & 2     & 2     & 1     & 2     & 2     & 2     &  \\*
    \multicolumn{1}{c}{} & \textit{z2} & 2     & 1     & 2     & 2     & 2     & 1     & 2     & 2     & 1     & 1     & 2     & 1     & 2     & 2     &  \\*
    \multicolumn{1}{c}{} & \textit{z34} & 2     & 2     & 1     & 2     & 2     & 2     & 2     & 2     & 2     & 2     & 2     & 2     & 2     & 2     &  \\*
    \multicolumn{1}{c}{} & \textit{z56} & 1     & 2     & 2     & 1     & 2     & 2     & 2     & 2     & 2     & 2     & 2     & 2     & 2     & 2     &  \\*
    \multicolumn{1}{c}{\multirow{4}[0]{*}{\begin{sideways}\textbf{Poles}\end{sideways}}} & \textit{p1} & 2     & 2     & 2     & 2     & 1     & 1     & 1     & 2     & 1     & 2     & 2     & 2     & 1     & 2     &  \\*
    \multicolumn{1}{c}{} & \textit{p2} & 2     & 2     & 2     & 2     & 1     & 1     & 2     & 1     & 2     & 1     & 2     & 2     & 1     & 2     &  \\*
    \multicolumn{1}{c}{} & \textit{p34} & 2     & 2     & 2     & 2     & 1     & 1     & 2     & 2     & 2     & 2     & 2     & 2     & 1     & 2     &  \\*
    \multicolumn{1}{c}{} & \textit{p56} & 1     & 2     & 2     & 2     & 1     & 1     & 2     & 2     & 2     & 2     & 2     & 2     & 1     & 2     & 
    \end{longtable}%    
\end{document}

[Tex/LaTex] “Undefined control sequence” on left parenthesis after midrule in longtable

You are running into the same problem as in "[" as first character in table row.

booktabs defines the rules to take an optional argument in the form [..] or (..). The use of (2) on the row immediately following \midrule is being interpreted as an optional argument, yet it doesn't match the definition that's expected with that type of optional argument.

To avoid this, use

\midrule\relax

enter image description here

\documentclass{article}
\usepackage{longtable,booktabs}
\begin{document}
\begin{longtable}{p{.3\textwidth}p{.5\textwidth}}
  \midrule
  label & value \\
  \midrule\relax
  (2) label & value \\
  \midrule
\end{longtable}
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] ‘longtable’ and ‘booktabs’ not working on this example

[Tex/LaTex] “Undefined control sequence” on left parenthesis after midrule in longtable

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