有没有建议修复表格列间空白并改善其边距
这是我的代码和输出
代码：
\documentclass[a4paper, 12pt]{article}
\usepackage{booktabs,tabularx}
\usepackage[labelsep=newline,singlelinecheck=false]{caption}
\usepackage[english]{babel}
\usepackage[margin=1in]{geometry}
\usepackage{dcolumn}
\newcolumntype{d}[1]{D..{#1}}
\newcommand\mc[1]{\multicolumn{1}{c}{#1}} % handy shortcut macro
\begin{document}
\begin{table}[ht!]
\small
\captionsetup{font={small,bf}}
% We use 'tabular*' to auto-determine intercolumn whitespace:
\setlength\tabcolsep{0pt}
\caption{Here's a title for the table}
\begin{tabular*}{\textwidth}{l @{\extracolsep{\fill}}d{1.3} d{1.0} *{4}{d{2.0}} d{1.3} d{2.0} *{5}{d{1.0}} }
\multicolumn{5}{l}{Panel A. Forecasting performance on 20\% samples.} \\
\toprule
& \multicolumn{6}{c}{Without PRI +TRI} & \multicolumn{7}{c}{With PRI \& TRI } \\
\cmidrule{2-7} \cmidrule{8-14}
& \mc{MAE} & \mc{MSE} & \mc{RMSE} & \mc{$R^2$} & \mc{RMSLE} & \mc{MAPE}
& \mc{MAE} & \mc{MSE} & \mc{RMSE} & \mc{$R^2$} & \mc{RMSLE} & \mc{MAPE} \\
\midrule
ET &32.42 &2226.25& 47.18& 0.67& 0.27& 0.21&30.85 & 2052.32 &45.30
&0.69 &0.25 & 0.20\\
LightGBM &34.01 &2364.40& 48.62& 0.64& 0.27& 0.22&30.76 & 2135.53 &46.21 &0.68 &0.26 & 0.20\\
XGBoost &35.56 &2561.07& 50.60& 0.62& 0.28& 0.23&32.11 & 2185.94 &46.75 &0.67 &0.26 & 0.21\\
BRR &52.41 &4264.44& 65.30& 0.36& 0.39& 0.35&51.58 & 4169.14 &64.56 &0.38 &0.38 & 0.34\\
ENR &56.37 &4908.93& 70.06& 0.27& 0.39& 0.37&55.58 & 4807.72 &69.33 &0.28 &0.38 & 0.36\\
LASSO &52.54 &4265.58& 65.31& 0.36& 0.38& 0.35&51.71 & 4175.38 &64.61 &0.38 &0.38 & 0.34\\
LR &52.41 &4264.43& 65.30& 0.36& 0.39& 0.35&51.58 & 4169.11 &64.56 &0.38 &0.38 & 0.34\\
\bottomrule
\end{tabular*}
\bigskip
\begin{tabular*}{\textwidth}{l @{\extracolsep{\fill}}d{1.3} d{1.0} *{4}{d{2.0}} d{1.3} d{2.0} *{5}{d{1.0}} }
\multicolumn{5}{l}{Panel B. Forecasting performance with 10-fold cross-validation} \\
\toprule
& \multicolumn{6}{c}{PRI } & \multicolumn{7}{c}{TRI } \\
\cmidrule{2-7} \cmidrule{8-14}
& \mc{MAE} & \mc{MSE} & \mc{RMSE} & \mc{$R^2$} & \mc{RMSLE} & \mc{MAPE}
& \mc{MAE} & \mc{MSE} & \mc{RMSE} & \mc{$R^2$} & \mc{RMSLE} & \mc{MAPE} \\
\midrule
ET &31.52& 2125.58& 46.10& 0.68& 0.26& 0.21 & 30.99 & 2070.10 &45.49 &0.69& 0.26& 0.20\\
LightGBM &31.49& 2225 & 47.17& 0.67& 0.26& 0.20 & 31.41 & 2201.85 & 46.92 &0.67& 0.26& 0.20\\
XGBoost &34.36& 2447.55& 49.47& 0.63& 0.28& 0.22 & 33.79 &2308.95 & 48.05 &0.65& 0.27& 0.22\\
BRR &52.29& 4233.64& 65.06& 0.37& 0.38& 0.35 & 51.54 &4172.25 & 64.59 &0.38& 0.38& 0.34\\
ENR &56.23& 4870.24& 69.78& 0.27& 0.39& 0.37 & 55.55 &4818.57 & 69.41 &0.28& 0.38& 0.36\\
LASSO &52.41& 4237.59& 65.09& 0.37& 0.38& 0.35 & 51.68 &4177.61 & 64.63 &0.38& 0.38& 0.34\\
LR &52.28& 4233.64& 65.06& 0.37& 0.38& 0.35 & 51.54 &4172.21 & 64.59 &0.38& 0.38& 0.34\\
\bottomrule
\end{tabular*}
\bigskip
Here's a description for the table
\end{table}
\end{document}
答案1
看起来你错误地计算了列数：有 1 个标题列（类型l）和 2*6=12 个数据列。顺便说一句，如果你想坚持使用d列类型，列规范应该是
l *{2}{d{2.2} d{4.2} d{2.2} *{3}{d{1.2}}}
我认为有必要指定\footnotesize，而不是\small，作为环境内容的（相对）字体大小tabular*。
最后，因为表格布局在表格的两个部分是相同的，所以使用单一tabular*环境就足够了；没有必要使用两个。
\documentclass[a4paper, 12pt]{article}
\usepackage{booktabs,tabularx}
\usepackage[labelsep=newline,singlelinecheck=false]{caption}
\usepackage[english]{babel}
\usepackage[margin=1in]{geometry}
\usepackage{dcolumn}
\newcolumntype{d}[1]{D..{#1}}
\newcommand\mc[1]{\multicolumn{1}{c}{#1}} % handy shortcut macro
\begin{document}
\begin{table}[ht!]
\footnotesize
\captionsetup{font={footnotesize}} % is 'bold' necessary?
\setlength\tabcolsep{0pt}
\caption{Here's a title for the table}
\begin{tabular*}{\textwidth}{@{\extracolsep{\fill}}
l *{2}{d{2.2} d{4.2} d{2.2} *{3}{d{1.2}}} }
\multicolumn{13}{l}{Panel A\@. Forecasting performance on 20\% samples.} \\
\toprule
& \multicolumn{6}{c}{Without PRI \& TRI}
& \multicolumn{6}{c}{With PRI \& TRI } \\
\cmidrule{2-7} \cmidrule{8-13}
& \mc{MAE} & \mc{MSE} & \mc{RMSE} & \mc{$R^2$} & \mc{RMSLE} & \mc{MAPE}
& \mc{MAE} & \mc{MSE} & \mc{RMSE} & \mc{$R^2$} & \mc{RMSLE} & \mc{MAPE} \\
\midrule
ET &32.42 &2226.25& 47.18& 0.67& 0.27& 0.21&30.85 & 2052.32 &45.30 &0.69 &0.25 & 0.20\\
LightGBM &34.01 &2364.40& 48.62& 0.64& 0.27& 0.22&30.76 & 2135.53 &46.21 &0.68 &0.26 & 0.20\\
XGBoost &35.56 &2561.07& 50.60& 0.62& 0.28& 0.23&32.11 & 2185.94 &46.75 &0.67 &0.26 & 0.21\\
BRR &52.41 &4264.44& 65.30& 0.36& 0.39& 0.35&51.58 & 4169.14 &64.56 &0.38 &0.38 & 0.34\\
ENR &56.37 &4908.93& 70.06& 0.27& 0.39& 0.37&55.58 & 4807.72 &69.33 &0.28 &0.38 & 0.36\\
LASSO &52.54 &4265.58& 65.31& 0.36& 0.38& 0.35&51.71 & 4175.38 &64.61 &0.38 &0.38 & 0.34\\
LR &52.41 &4264.43& 65.30& 0.36& 0.39& 0.35&51.58 & 4169.11 &64.56 &0.38 &0.38 & 0.34\\
\bottomrule \\[2.5\baselineskip]
% \end{tabular*}
% \bigskip
%\begin{tabular*}{\textwidth}{@{\extracolsep{\fill}}
% l *{2}{d{2.2} d{4.2} d{2.2} *{3}{d{1.2}}} }
\multicolumn{13}{l}{Panel B\@. Forecasting performance with 10-fold cross-validation} \\
\toprule
& \multicolumn{6}{c}{PRI}
& \multicolumn{6}{c}{TRI} \\
\cmidrule{2-7} \cmidrule{8-13}
& \mc{MAE} & \mc{MSE} & \mc{RMSE} & \mc{$R^2$} & \mc{RMSLE} & \mc{MAPE}
& \mc{MAE} & \mc{MSE} & \mc{RMSE} & \mc{$R^2$} & \mc{RMSLE} & \mc{MAPE} \\
\midrule
ET &31.52& 2125.58 & 46.10 & 0.68& 0.26& 0.21 & 30.99 & 2070.10 & 45.49 &0.69& 0.26& 0.20\\
LightGBM &31.49& 2225.00 & 47.17 & 0.67& 0.26& 0.20 & 31.41 & 2201.85 & 46.92 &0.67& 0.26& 0.20\\
XGBoost &34.36& 2447.55 & 49.47 & 0.63& 0.28& 0.22 & 33.79 & 2308.95 & 48.05 &0.65& 0.27& 0.22\\
BRR &52.29& 4233.64 & 65.06 & 0.37& 0.38& 0.35 & 51.54 & 4172.25 & 64.59 &0.38& 0.38& 0.34\\
ENR &56.23& 4870.24 & 69.78 & 0.27& 0.39& 0.37 & 55.55 & 4818.57 & 69.41 &0.28& 0.38& 0.36\\
LASSO &52.41& 4237.59 & 65.09 & 0.37& 0.38& 0.35 & 51.68 & 4177.61 & 64.63 &0.38& 0.38& 0.34\\
LR &52.28& 4233.64 & 65.06 & 0.37& 0.38& 0.35 & 51.54 & 4172.21 & 64.59 &0.38& 0.38& 0.34\\
\bottomrule
\end{tabular*}
\bigskip
Here's the table legend.
\end{table}
\end{document}
答案2
我建议\footnotesize并考虑到您的表格有 13 列，而不是 14 列。
第五列的奇怪间距是由于你的\multicolumn{5}{l}{...}命令：你想要包含全部分配的列。
不要忘记p如此大浮点数的选项。
作为一名数学家，我对否定和德摩根定律很挑剔，所以我在第一个面板中使用了明确的“或”和“和”。
\documentclass[a4paper, 12pt]{article}
\usepackage{booktabs}
\usepackage[labelsep=newline,singlelinecheck=false]{caption}
%\usepackage[english]{babel}
\usepackage[margin=1in]{geometry}
\usepackage{siunitx}
\begin{document}
\begin{table}[htp!]
\footnotesize
% We use 'tabular*' to auto-determine intercolumn whitespace:
\setlength\tabcolsep{0pt}
\caption{Here's a title for the table}
\begin{tabular*}{\textwidth}{
@{\extracolsep{\fill}}
l
*{2}{
S[table-format=2.2]
S[table-format=4.2]
S[table-format=2.2]
S[table-format=1.2]
S[table-format=1.2]
S[table-format=1.2]
}
}
\multicolumn{13}{l}{Panel A. Forecasting performance on 20\% samples.} \\
\toprule
& \multicolumn{6}{c}{Without PRI or TRI} & \multicolumn{6}{c}{With PRI and TRI } \\
\cmidrule{2-7} \cmidrule{8-13}
& {MAE} & {MSE} & {RMSE} & {$R^2$} & {RMSLE} & {MAPE}
& {MAE} & {MSE} & {RMSE} & {$R^2$} & {RMSLE} & {MAPE} \\
\midrule
ET &32.42 &2226.25 &47.18 &0.67 &0.27 &0.21 &30.85 &2052.32 &45.30 &0.69 &0.25 &0.20 \\
LightGBM &34.01 &2364.40 &48.62 &0.64 &0.27 &0.22 &30.76 &2135.53 &46.21 &0.68 &0.26 &0.20 \\
XGBoost &35.56 &2561.07 &50.60 &0.62 &0.28 &0.23 &32.11 &2185.94 &46.75 &0.67 &0.26 &0.21 \\
BRR &52.41 &4264.44 &65.30 &0.36 &0.39 &0.35 &51.58 &4169.14 &64.56 &0.38 &0.38 &0.34 \\
ENR &56.37 &4908.93 &70.06 &0.27 &0.39 &0.37 &55.58 &4807.72 &69.33 &0.28 &0.38 &0.36 \\
LASSO &52.54 &4265.58 &65.31 &0.36 &0.38 &0.35 &51.71 &4175.38 &64.61 &0.38 &0.38 &0.34 \\
LR &52.41 &4264.43 &65.30 &0.36 &0.39 &0.35 &51.58 &4169.11 &64.56 &0.38 &0.38 &0.34 \\
\bottomrule
\addlinespace[4ex]
\multicolumn{13}{l}{Panel B. Forecasting performance with 10-fold cross-validation} \\
\toprule
& \multicolumn{6}{c}{PRI } & \multicolumn{6}{c}{TRI } \\
\cmidrule{2-7} \cmidrule{8-13}
& {MAE} & {MSE} & {RMSE} & {$R^2$} & {RMSLE} & {MAPE}
& {MAE} & {MSE} & {RMSE} & {$R^2$} & {RMSLE} & {MAPE} \\
\midrule
ET &31.52 &2125.58 &46.10 &0.68 &0.26 &0.21 &30.99 &2070.10 &45.49 &0.69 &0.26 &0.20 \\
LightGBM &31.49 &2225 &47.17 &0.67 &0.26 &0.20 &31.41 &2201.85 &46.92 &0.67 &0.26 &0.20 \\
XGBoost &34.36 &2447.55 &49.47 &0.63 &0.28 &0.22 &33.79 &2308.95 &48.05 &0.65 &0.27 &0.22 \\
BRR &52.29 &4233.64 &65.06 &0.37 &0.38 &0.35 &51.54 &4172.25 &64.59 &0.38 &0.38 &0.34 \\
ENR &56.23 &4870.24 &69.78 &0.27 &0.39 &0.37 &55.55 &4818.57 &69.41 &0.28 &0.38 &0.36 \\
LASSO &52.41 &4237.59 &65.09 &0.37 &0.38 &0.35 &51.68 &4177.61 &64.63 &0.38 &0.38 &0.34 \\
LR &52.28 &4233.64 &65.06 &0.37 &0.38 &0.35 &51.54 &4172.21 &64.59 &0.38 &0.38 &0.34 \\
\bottomrule
\end{tabular*}
\bigskip
Here's a description for the table
\end{table}
\end{document}
