Tabelle mit einem Beschreibungsabschnitt

Question

Ich habe einige Probleme mit dem xltabular-Paket, wenn ich versuche, diese Tabelle zu zeichnen. Das Problem ist, dass das Ergebnis beim Erstellen anderer Tabellen wie das erste ist, aber wenn ich das Paket aus meinem Haupttext lösche, wird die Tabelle vollständig. Kann ich es also tun, ohne dieses Paket zu verwenden? Der Code für die erste Tabelle

{

\begin{xltabular}{\linewidth}{ l | X }
  \caption{Data description  of dependent \& independent variables.}
 \label{table: vardescription}\\
 \hline \hline

\textbf{\normalsize Variable} & \textbf{\normalsize Description}  \\
 \hline
\endfirsthead
 \hline \hline

\textbf{Excess  returns} & In this research, our main goal is in showing the directional predictability, where the \textbf{dependent variable} is the dummy sign return indicator.
\[ 
\mathit{Excess\ return} =
  \begin{cases}
    1,  \quad\text{if the excess returns is } >0\\
    0, \quad\text{if the excess returns is } < 0 
  \end{cases}
\]
\\ \hline

\textbf{Recession} &
The recession defined by the \textbf{NBER} are used.
\[ \mathit{Recession} =
  \begin{cases}
    1,  \quad\text{if the  economy is in a recession},\\
     0, \quad\text{if the economy  is in an expansion}
  \end{cases}
\]
\\ \hline

\textbf{Dividend to price} & Dividends from past year divided by closing value of index at month end.
      \\[0ex]\hline
\textbf{Earning to price} & Earnings over the past year divided by closing value of index at month end.
     \\[0ex]\hline
\textbf{Term spread} & The 10 year US Treasury Bill less 3 month US Treasury Bill. \\ \hline
\end{xltabular}
}
\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{This is the heading}
\caption*{\footnotesize Smaller note of table that describes what the table is all about.}
\begin{tabular}{l*{3}{c}}
\toprule
                &\multicolumn{1}{c}{(1)}   &\multicolumn{1}{c}{(2)}   &\multicolumn{1}{c}{(3)}   \\
                &     Base   &   Robust   &  Cluster   \\
\midrule
Size            &-0.000645   &-0.000645   &-0.000645   \\
                &  (-0.83)   &  (-0.83)   &  (-0.39)   \\
\midrule
Observations    &     5035   &     5035   &     5035   \\
\bottomrule
\multicolumn{4}{l}{\footnotesize \textit{t} statistics in parentheses}\\
\multicolumn{4}{l}{\footnotesize * p<0.10, ** p<0.05, *** p<0.01}\\
\end{tabular}
\end{table}

Answer 1

Bei mir funktioniert das Laden der entsprechenden Pakete problemlos. Ich habe einige kleine Verbesserungen und Codevereinfachungen hinzugefügt.

\documentclass{article}
\usepackage{xltabular, booktabs}
\usepackage{mathtools} 
\usepackage{siunitx} 

\begin{document}

\begin{xltabular}{\linewidth}{ l | >{\arraybackslash}X }
 \caption{Data description of dependent \& independent variables.}
 \label{table: vardescription}\\
 \hline \hline
%
\textbf{\normalsize Variable} & \textbf{\normalsize Description} \\
 \hline
\endfirsthead
 \hline \hline
%
\textbf{Excess returns} & In this research, our main goal is in showing the directional predictability, where the \textbf{dependent variable} is the dummy sign return indicator.
\[ \textit{Excess\ return} =
 \begin{cases*}
 1, & if the excess returns is $ >0 $,\\
 0, & if the excess returns is $ < 0 $. 
 \end{cases*} \]
\\ \hline
\textbf{Recession} &
The recession defined by the \textbf{NBER} are used.
\[ \textit{Recession} =
 \begin{cases*}
 1, & if the economy is in a recession,\\
 0, & if the economy is in an expansion.
 \end{cases*}\]
\\ \hline
\textbf{Dividend to price} & Dividends from past year divided by closing value of index at month end.
 \\[0ex]\hline
\textbf{Earning to price} & Earnings over the past year divided by closing value of index at month end.
 \\[0ex]\hline
\textbf{Term spread} & The 10 year US Treasury Bill less 3 month US Treasury Bill. \\ \hline
\end{xltabular}

\end{document}