[Tex/LaTex] How to solve the issue between side-by-side floats (tables) and floatrow package

floatrowfloatsminipagetables

I came from here where this issue was raised but could not find a straightforward solution. I have now side-by-side tables and I want to avoid the errors thrown once floatrow package is added to the preamble. Is there any solution to this issue or, in case not, any alternative to do side-by-side tables without sacrificing the floatrow package?

MWE code:

\documentclass{scrartcl}
%\usepackage{floatrow} % commented out otherwise throws errors (see below)
\usepackage{booktabs}
\begin{document}
\begin{table}
\centering
\makebox[0pt][c]{\parbox{1\textwidth}{%
    \begin{minipage}[b]{0.5\hsize}\centering
        \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   3 &   0 &   0 &   0 \\ 
        P &   0 &   5 &   0 &   0 \\ 
        R &   0 &   0 &  19 &   1 \\ 
        Q &   0 &   0 &   0 &  25 \\ 
        \bottomrule 
        \end{tabular}
        \caption{SVMr confusion matrix.}
        \label{tab:cmsvm}
        \vskip 1cm
        \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   2 &   0 &   0 &   0 \\ 
        P &   0 &   5 &   0 &   0 \\ 
        R &   1 &   0 &  19 &   0 \\ 
        Q &   0 &   0 &   0 &  26 \\ 
        \bottomrule 
        \end{tabular}
        \caption{RDA confusion matrix.}
        \label{tab:cmrda}
        \vskip 1cm
        \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   3 &   0 &   0 &   0 \\ 
        P &   0 &   4 &   0 &   0 \\ 
        R &   0 &   0 &  19 &   0 \\ 
        Q &   0 &   1 &   0 &  26 \\ 
        \bottomrule 
        \end{tabular}
        \caption{PAM confusion matrix.}
        \label{tab:cmpam}
    \end{minipage}
    \hfil
    \begin{minipage}[b]{0.5\hsize}\centering
        \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   2 &   0 &   0 &   0 \\ 
        P &   0 &   4 &   0 &   0 \\ 
        R &   1 &   0 &  19 &   0 \\ 
        Q &   0 &   1 &   0 &  26 \\
        \bottomrule 
        \end{tabular}
        \caption{PLS-LDA confusion matrix.}
        \label{tab:cmplslda}
        \vskip 1cm
        \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   2 &   0 &   0 &   0 \\ 
        P &   0 &   4 &   0 &   0 \\ 
        R &   1 &   0 &  18 &   1 \\ 
        Q &   0 &   1 &   1 &  25 \\
        \bottomrule 
        \end{tabular}
        \caption{LDA confusion matrix.}
        \label{tab:cmlda}
        \vskip 1cm
         \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   2 &   0 &   0 &   0 \\ 
        P &   0 &   3 &   0 &   0 \\ 
        R &   1 &   0 &  12 &   3 \\ 
        Q &   0 &   2 &   7 &  23 \\ 
        \bottomrule 
        \end{tabular}
        \caption{PLS confusion matrix.}
        \label{tab:cmpls}
    \end{minipage}
    \hfil
}}
\end{table}
\end{document}

Output:
enter image description here

Error: 

Package floatrow Error: Caption(s) lost

Best Answer

The quickest solution is to use the \RawFloats command (or the rawfloats package option); for other possible solution, see the quote below:

\documentclass{article}
\usepackage{booktabs}
\usepackage{floatrow}

\begin{document}
\begin{table}
\RawFloats
\centering
\makebox[0pt][c]{\parbox{1\textwidth}{%
    \begin{minipage}[b]{0.5\hsize}\centering
        \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   3 &   0 &   0 &   0 \\ 
        P &   0 &   5 &   0 &   0 \\ 
        R &   0 &   0 &  19 &   1 \\ 
        Q &   0 &   0 &   0 &  25 \\ 
        \bottomrule 
        \end{tabular}
        \caption{SVMr confusion matrix.}
        \label{tab:cmsvm}
        \vskip 1cm
        \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   2 &   0 &   0 &   0 \\ 
        P &   0 &   5 &   0 &   0 \\ 
        R &   1 &   0 &  19 &   0 \\ 
        Q &   0 &   0 &   0 &  26 \\ 
        \bottomrule 
        \end{tabular}
        \caption{RDA confusion matrix.}
        \label{tab:cmrda}
        \vskip 1cm
        \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   3 &   0 &   0 &   0 \\ 
        P &   0 &   4 &   0 &   0 \\ 
        R &   0 &   0 &  19 &   0 \\ 
        Q &   0 &   1 &   0 &  26 \\ 
        \bottomrule 
        \end{tabular}
        \caption{PAM confusion matrix.}
        \label{tab:cmpam}
    \end{minipage}
    \hfil
    \begin{minipage}[b]{0.5\hsize}\centering
        \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   2 &   0 &   0 &   0 \\ 
        P &   0 &   4 &   0 &   0 \\ 
        R &   1 &   0 &  19 &   0 \\ 
        Q &   0 &   1 &   0 &  26 \\
        \bottomrule 
        \end{tabular}
        \caption{PLS-LDA confusion matrix.}
        \label{tab:cmplslda}
        \vskip 1cm
        \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   2 &   0 &   0 &   0 \\ 
        P &   0 &   4 &   0 &   0 \\ 
        R &   1 &   0 &  18 &   1 \\ 
        Q &   0 &   1 &   1 &  25 \\
        \bottomrule 
        \end{tabular}
        \caption{LDA confusion matrix.}
        \label{tab:cmlda}
        \vskip 1cm
         \begin{tabular}{r|rrrr}
        \toprule
          & \multicolumn{4}{c}{\textbf{Reference}} \\
        \midrule
        \textbf{Predicted}  & H & P & R & Q \\ 
        \midrule
        H &   2 &   0 &   0 &   0 \\ 
        P &   0 &   3 &   0 &   0 \\ 
        R &   1 &   0 &  12 &   3 \\ 
        Q &   0 &   2 &   7 &  23 \\ 
        \bottomrule 
        \end{tabular}
        \caption{PLS confusion matrix.}
        \label{tab:cmpls}
    \end{minipage}
    \hfil
}}
\end{table}
\end{document}

The phenomenon is explained, and solutions are provided, on page 14 of the floatrow package documentation:

The next example. If you put beside floats by following way:

...
\begin{figure}
\begin{minipage}{0.45\textwidth}
\centering ...
\caption{The figure caption, disappeared, ...}
\end{minipage}\hfill
\begin{minipage}{0.45\textwidth}
\captionof{table}{The table caption ...}}
\centering ...
\end{minipage}
\end{figure}

you’ll get error message about lost caption. Here you may: 1) to put table contents inside \ttabbox resp. the figure contents inside \ffigbox; then both floats put inside floatrow environment, and, since there is mixed row (it includes floats of different types, and also with different caption position), put the \killfloatstyle command before “foreign” float \ttabbox, and \CenterFloatBoxes command before floatrow environment (see section 2.3.1 about mixed rows); or 2) to restore the standard LaTeX behavior, using command \RawFloats or package option rawfloats (section 2.4).

Related Question