我有下表，想将其插入到 Beamer 演示文稿中，但每次运行代码时都会出错。如果您能帮助我，我将不胜感激。谢谢。
%-------------------Stochastic Frontier Production: Wheat-------------------------------------%
\begin{table}[htbp]\centering
\small
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Stochastic Frontier Production: Wheat}
\begin{tabular}{l c c c}
\hline\hline
\textbf{Variable} & \textbf{Model 1} & \textbf{Model 2} & \textbf{Model 3}\\ \hline
Wheat land & 0.484\sym{***}& 0.418\sym{***}& 0.375\sym{***}\\
& (0.0419) & (0.0384) & (0.0379) \\
Labor & 0.197\sym{***}& 0.182\sym{***}& 0.182\sym{***}\\
& (0.0500) & (0.0445) & (0.0436) \\
Number of oxen & 0.290\sym{***}& 0.187\sym{**} & 0.229\sym{**} \\
& (0.0756) & (0.0699) & (0.0701) \\
Capital & 0.0822\sym{***}& 0.0267 & 0.0231 \\
& (0.0241) & (0.0236) & (0.0237) \\
Soil fertility & & -0.0415 & -0.0652 \\
& & (0.0659) & (0.0650) \\
Land slope & & -0.00921 & -0.000967 \\
& & (0.106) & (0.105) \\
Amhara Region & & 0.807\sym{*} & 2.228\sym{***}\\
& & (0.329) & (0.316) \\
Oromia Region & & 1.203\sym{***}& 2.941\sym{***}\\
& & (0.248) & (0.305) \\
SNNPR Region & & 0.192 & 2.921\sym{***}\\
& & (0.301) & (0.493) \\
Year 2009 & & -0.628\sym{**} & -0.775\sym{***}\\
& & (0.236) & (0.126) \\
Wheat season min. temperature & & 0.465\sym{***}& \\
& & (0.0833) & \\
Wheat season max. temperature & & -0.610\sym{***}& \\
& & (0.0951) & \\
Wheat season rainfall & & -0.375\sym{***}& \\
& & (0.0832) & \\
Wheat season rainfall lagged one year & & 0.0456 & \\
& & (0.0312) & \\
Wheat season rainfall lagged two years & & 0.209\sym{***}& \\
& & (0.0468) & \\
Annual rainfall & & & -0.289\sym{**} \\
& & & (0.0932) \\
Annual max. temperature & & & -1.228\sym{***}\\
& & & (0.158) \\
Annual min. temperature & & & 1.073\sym{***}\\
& & & (0.141) \\
Constant & 5.730\sym{***}& 15.43\sym{***}& 24.31\sym{***}\\
& (0.194) & (1.667) & (2.582) \\
$\sigma^2$ & 459.0885 & 226.4106 & 228.8249 \\
& (1383.531) & (398.8891) & (389.8677) \\
$\gamma$ & 0.999 & 0.998 & 0.999 \\
& (0.0028) & (0.0027) & (0.0025) \\
Log-likelihood&-661.1631 &-565.6518 &-563.6243 \\
Observations & 538 & 538 & 538 \\
\bottomrule
\multicolumn{4}{l}{\footnotesize Standard errors in parentheses ***\(p<0.01\), ** \(p<0.05\), *\(p<0.1\)}\\
\end{tabular}
\end{table}
%------- End LaTeX code -------%
答案1
您的框架内不能有\def起始 - 将其移至序言中。
这可以消除错误，但希望你能把大象装进手提箱——并不是每个在普通文档中有效的布局都适合演示文稿。此外，对于你从中获取表格的文档：我建议按小数点对齐数字——这很容易使用该siunitx包。
\documentclass{beamer}
\usepackage{booktabs}
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{document}
\begin{frame}[shrink=40]
%-------------------Stochastic Frontier Production: Wheat-------------------------------------%
\begin{table}\centering
\small
\caption{Stochastic Frontier Production: Wheat}
\begin{tabular}{l c c c}
\hline\hline
\textbf{Variable} & \textbf{Model 1} & \textbf{Model 2} & \textbf{Model 3}\\ \hline
Wheat land & 0.484\sym{***}& 0.418\sym{***}& 0.375\sym{***}\\
& (0.0419) & (0.0384) & (0.0379) \\
Labor & 0.197\sym{***}& 0.182\sym{***}& 0.182\sym{***}\\
& (0.0500) & (0.0445) & (0.0436) \\
Number of oxen & 0.290\sym{***}& 0.187\sym{**} & 0.229\sym{**} \\
& (0.0756) & (0.0699) & (0.0701) \\
Capital & 0.0822\sym{***}& 0.0267 & 0.0231 \\
& (0.0241) & (0.0236) & (0.0237) \\
Soil fertility & & -0.0415 & -0.0652 \\
& & (0.0659) & (0.0650) \\
Land slope & & -0.00921 & -0.000967 \\
& & (0.106) & (0.105) \\
Amhara Region & & 0.807\sym{*} & 2.228\sym{***}\\
& & (0.329) & (0.316) \\
Oromia Region & & 1.203\sym{***}& 2.941\sym{***}\\
& & (0.248) & (0.305) \\
SNNPR Region & & 0.192 & 2.921\sym{***}\\
& & (0.301) & (0.493) \\
Year 2009 & & -0.628\sym{**} & -0.775\sym{***}\\
& & (0.236) & (0.126) \\
Wheat season min. temperature & & 0.465\sym{***}& \\
& & (0.0833) & \\
Wheat season max. temperature & & -0.610\sym{***}& \\
& & (0.0951) & \\
Wheat season rainfall & & -0.375\sym{***}& \\
& & (0.0832) & \\
Wheat season rainfall lagged one year & & 0.0456 & \\
& & (0.0312) & \\
Wheat season rainfall lagged two years & & 0.209\sym{***}& \\
& & (0.0468) & \\
Annual rainfall & & & -0.289\sym{**} \\
& & & (0.0932) \\
Annual max. temperature & & & -1.228\sym{***}\\
& & & (0.158) \\
Annual min. temperature & & & 1.073\sym{***}\\
& & & (0.141) \\
Constant & 5.730\sym{***}& 15.43\sym{***}& 24.31\sym{***}\\
& (0.194) & (1.667) & (2.582) \\
$\sigma^2$ & 459.0885 & 226.4106 & 228.8249 \\
& (1383.531) & (398.8891) & (389.8677) \\
$\gamma$ & 0.999 & 0.998 & 0.999 \\
& (0.0028) & (0.0027) & (0.0025) \\
Log-likelihood&-661.1631 &-565.6518 &-563.6243 \\
Observations & 538 & 538 & 538 \\
\bottomrule
\multicolumn{4}{l}{\footnotesize Standard errors in parentheses ***\(p<0.01\), ** \(p<0.05\), *\(p<0.1\)}\\
\end{tabular}
\end{table}
%------- End LaTeX code -------%
\end{frame}
\end{document}
答案2
该错误源于使用 \bottomrule（可能是因为表格在那个阶段已经在边距之外）。删除它就可以了。