[Tex/LaTex] !Misplaced \omit. \multispan -> \omit for stacked image figure

multicolumntables

I am trying to create a figure composed of 2 images stacked vertically, with captions underneath each. There are 2 captions (horizontally) under the second image, therefore I use 2 columns. My latex is the following:

\begin{figure}
\begin{tabular}{@{}l@{}l@{}}
\begin{multicolumn}{2}{c}{\includegraphics[width=0.8\linewidth]{fig_a.png}} \\
\begin{multicolumn}{2}{p{0.8\linewidth}}{Caption (a)}  \\
\begin{multicolumn}{2}{l}{\includegraphics[width=0.7\linewidth]{fig_b_c.png}}\\
\begin{multicolumn}{1}{r}{Caption (b)} &
\begin{multicolumn}{1}{r}{(Caption (c)}
\end{tabular}
\caption{Figure caption.}
\label{fig:two-part-image} 
\end{figure}

However I am getting the error

!Misplaced \omit.
\multispan ->\omit
@\multispan

and can't figure out what is wrong. Any help would be much appreciated!

Best Answer

Don't use \begin{multicolumn}... instead use \multicolumn{<num>}{<col spec>}{<stuff>}. This will make a single cell entry with <stuff> span <num> columns with <col spec> as a specification (like c or p{<len>}).

Related Solutions

[Tex/LaTex] Misplaced \omit. \multispan with \newcommand

Tabular material is really picky about what is allowed to go "before" a line. In particular, it has to be fully expandable.

Hence, even the assignment which \ingredient needs to do to check for its optional argument is enough to start the line, and then \multicolumn is no longer allowed to appear.

The easiest way to remedy this is to make the first argument of \ingredient mandatory:

\documentclass{scrartcl}
\newcommand{\ingredient}[3]{
    #1 #2 & #3 \\
}
\begin{document}
    \begin{tabular}{r|l}        
        \ingredient{\multicolumn{2}{l}{Head} \\}{test1}{test2}
        \ingredient{test3}{test4}{test5}
        \ingredient{}{test6}{test7}
    \end{tabular}
\end{document}

[Tex/LaTex] “! Misplaced \omit” error

You cannot place a \label as the first element in a cell. If you're interested in labelling the table, place the tabular in a table environment, add a \caption and place the \label after it:

enter image description here

\documentclass{article}
\begin{document}
\begin{table}
  \centering
  \begin{tabular}{c|c|c|c|c|}
    \cline{2-5}
    & \multicolumn{2}{|c}{1 Sec Trials} & \multicolumn{2}{|c|}{100 Sec Trials} \\
    \hline
    \multicolumn{1}{|c|}{Target Rate} & Mean & Std. Dev & Mean & Std. Dev \\
    \hline
    \multicolumn{1}{|r|}{1Hz} & 1.07 & 1.08 & 1.22 & 0.11 \\
    \multicolumn{1}{|r|}{5Hz} & 4.71 & 2.09 & 4.51 & 0.21 \\
    \multicolumn{1}{|r|}{10Hz} & 10.3 & 3.28  & 10.1 & 0.32 \\
    \multicolumn{1}{|r|}{100Hz} & 93.6 & 9.91 & 94.6 & 0.97 \\
    \hline
  \end{tabular}
  \caption{Here is a caption}\label{tlc}
\end{table}
\end{document}

Here is a booktabs alternative to your tabular:

enter image description here

\documentclass{article}
\usepackage{booktabs}% http://ctan.org/pkg/booktabs
\begin{document}
\begin{table}
  \centering
  \begin{tabular}{r*{4}{c}}
    \toprule
    & \multicolumn{2}{c}{1 Sec Trials} & \multicolumn{2}{c}{100 Sec Trials} \\
    \cmidrule(lr){2-3} \cmidrule(lr){4-5}
    Target Rate & Mean & Std. Dev & Mean & Std. Dev \\
    \midrule
    1Hz & 1.07 & 1.08 & 1.22 & 0.11 \\
    5Hz & 4.71 & 2.09 & 4.51 & 0.21 \\
    10Hz & 10.3 & 3.28  & 10.1 & 0.32 \\
    100Hz & 93.6 & 9.91 & 94.6 & 0.97 \\
    \bottomrule
  \end{tabular}
  \caption{Here is a caption}\label{tlc}
\end{table}
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] Misplaced \omit. \multispan with \newcommand

[Tex/LaTex] “! Misplaced \omit” error

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