[Tex/LaTex] Alignment in a longtable + centered rule

horizontal alignmentlongtable

The first row in my longtable-environment should be left-aligned and only have a specific width. The other rows should be right-aligned. I get the error Extra alignment tab has been changed to \cr 1 & if I use >{\raggedleft}p{1cm} instead of only p{1cm}. What is wrong with my environment?

Is there also a way to align the \cmidrule centered in the middle of the whole table? An extra table in a minipage-environment does not really work (the minipage is then right-aligned).

\documentclass[a4paper]{article}
\usepackage{geometry}
\geometry{paper=a4paper,inner=26mm,outer=26mm,top=30mm}
\usepackage{longtable}
\usepackage{array}
\usepackage{booktabs}
\newcolumntype{L}[1]{>{\raggedleft\hspace{0pt}}p{#1}}
\begin{document}
\begin{longtable}{lrrrp{1cm}}%{lrrrL{1cm}}
\caption{Fo}
\label{tab:ll}\\
\toprule
Nanana  &\multicolumn{1}{p{3cm}}{nononononon nii nuu Ononononono}&\multicolumn{1}{p{3cm}}{nononononon nunu nnu bobobobobob}&nun&\multicolumn{1}{p{3cm}}{nono non nonors nononno nunununun}\\\midrule
\multicolumn{5}{c}{nonono,\qquad nono=0.042\quad nununu=0.011}\\
\multicolumn{5}{c}{npnpnpnpnpnpnnununuu:\qquad 2.35}\\
\cmidrule(lr){2-4}
0   &6907   &6615   &3684   &79 \\
1   &96907  &96615  &93684  &179    \\
\bottomrule
\end{longtable}
\end{document}

Best Answer

The problem is well known and documented in the package array: if you have >{\raggedleft} in the last column either you use \tabularnewline for ending the row or say

>{\raggedleft\arraybackslash}p{3cm}

It's also wrong to specify p{1cm} in the table preamble, while using p{3cm} in the \multicolumn: use the same dimension in both places.

Related Solutions

[Tex/LaTex] Textwidth longtable with centered headers

I think you have two main choices, both of which have their aesthetic merits:

Keep using your current longtable setup, but don't use vertical bars to separate the columns visually. Give it a try: I'm confident you won't miss those vertical rules at all.
Load the tabularx and ltxtable packages as well, and use the X column type for the headers of the longtable environment. The only, but fortunately fairly minor, drawback of this method is that you need to place the entire longtable material in a separate file. This drawback can be mitigated by using the filecontents package to include the contents of the longtable in the document's preamble. The macro \LTXtable{\textwidth}{<filename>} is then used to load the external longtable.

enter image description here

\RequirePackage{filecontents}
\documentclass[letterpaper,12pt]{report}
\usepackage[margin=1in]{geometry}
\usepackage{longtable,tabularx,ltxtable}
\newcolumntype{Y}{>{\centering\arraybackslash}X}
\setlength\LTleft{0pt}
\setlength\LTright{0pt}

% same as posted by OP
\begin{filecontents*}{mytable0.tex} 
\begin{longtable}{@{\extracolsep{\fill}} | l | c | c | r | r | }
\caption{Longtable with extra ``fill'' and vertical rules}\\
\hline
\multicolumn{1}{|c|}{\textbf{Header 1}} &
    \multicolumn{1}{c|}{\textbf{Header 2}} &
    \multicolumn{1}{c|}{\textbf{Header 3}} &
    \multicolumn{1}{c|}{\textbf{Header 4}} &
    \multicolumn{1}{c|}{\textbf{Header 5}} \\
\hline
\endhead
\end{longtable}
\end{filecontents*}

\begin{filecontents*}{mytable1.tex}
\begin{longtable}{@{\extracolsep{\fill}}  l  c  c  r  r  }
\caption{Longtable with extra ``fill'' and no vertical rules}\\
\hline
\multicolumn{1}{c}{\textbf{Header 1}} &
    \multicolumn{1}{c}{\textbf{Header 2}} &
    \multicolumn{1}{c}{\textbf{Header 3}} &
    \multicolumn{1}{c}{\textbf{Header 4}} &
    \multicolumn{1}{c}{\textbf{Header 5}} \\
\hline
\endhead
\end{longtable}
\end{filecontents*}

\begin{filecontents*}{mytable2.tex}
\begin{longtable}{ | l | c | c | r | r | }
\caption{Longtable, ``centered X'' column types}\\
\hline
    \multicolumn{1}{|Y|}{\textbf{Header 1}} &
    \multicolumn{1}{ Y|}{\textbf{Header 2}} &
    \multicolumn{1}{ Y|}{\textbf{Header 3}} &
    \multicolumn{1}{ Y|}{\textbf{Header 4}} &
    \multicolumn{1}{ Y|}{\textbf{Header 5}} \\
\hline
\endhead
\end{longtable}
\end{filecontents*}
\begin{document}
\LTXtable{\textwidth}{mytable0.tex} % initial look

\LTXtable{\textwidth}{mytable1.tex}

\LTXtable{\textwidth}{mytable2.tex}
\end{document}

[Tex/LaTex] longtable Alignment

enter image description here

The tex model of table layout doesn't really allow for vertically centering within the space of a cell, each cell has a base reference point and these are aligned. l, c, r columns it is the baseline of the text p columns it is the baseline of the top row. and for m columns it is that cell's centre and b it is that cells bottom line. The baseline of an image is on its bottom edge. Note that m does not place the cell content in the centre of the space finally allocated to that cell, it simply puts the baseline of the content on that content's vertical centre.

So you get the layout in the first example.

You can change the reference point of the image to be roughly one line's worth below the top with

\raisebox{10pt-\height}{\includegraphics....

That will give a layout like the second image, but the first column it is not centred, if there is a lot of text in the third column, the image will still be aligned on its top row.

If you want centred appearance you need to center the third column. If that used m rather than p its reference point would be in its centre, then you can put the reference point of the image in the centre with

\raisebox{-.5\height}{\includegraphics....

and the alignment will be:

enter image description here

Best Answer

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[Tex/LaTex] Textwidth longtable with centered headers

[Tex/LaTex] longtable Alignment

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