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将图像插入表格环境

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将图像插入表格环境

我有 8 张图片，其中我想要横向放置 2 张图片，纵向放置 4 张图片。我尝试使用以下代码执行此操作：

\begin{figure}[htb]
\centering
  \begin{tabular}{@{}cccc@{}}
    \includegraphics[scale=0.4]{../random_forest/TP-Pred/program/error1.jpg} 
    \includegraphics[scale=0.4]{../random_forest/AFP-AFP-like/program/error1.jpg}
    \includegraphics[scale=0.4]{../random_forest/TP-Pred/program/error1.jpg} 
    \includegraphics[scale=0.4]{../random_forest/AFP-AFP-like/program/error1.jpg}  
    \multicolumn{4}{c}{\includegraphics[width=.23\textwidth]{example-image-a}}
  \end{tabular}
  \caption{A plot of the random forest error split culmulatively over the 4 sets of features}
\end{figure}

但是所有 4 幅图像都显示在同一水平线上。我该如何让它们看起来像这样：

image 1      image 2
image 3      image 4
image 5      image 6
image 7      image 8

提前致谢。

答案1

我猜这 8 张 jpeg 大小都一样，对吧？如果是那样的话，就不需要将它们嵌入到环境中tabular。您可以改为执行以下操作：

\begin{figure}[htb]
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image1.jpg}%
    \hspace*{\fill}% induce some horizontal separation between images 1 and 2
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image2.jpg}

    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image3.jpg}%
    \hspace*{\fill}% induce some horizontal separation between images 3 and 4
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image4.jpg}

    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image5.jpg}%
    \hspace*{\fill}% induce some horizontal separation between images 5 and 6
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image6.jpg}

    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image7.jpg}%
    \hspace*{\fill}% induce some horizontal separation between images 7 and 8
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image8.jpg}

  \caption{A plot of the random forest error split culmulatively over the 4 sets of features}
\end{figure}

请注意，空白行会自动强制以下图像显示在新“行”上。如果您想要的垂直间隔大于最小值，则可以插入诸如\smallskip、\medskip或 之类的指令\bigskip（同时仍留出空白行以强制换行）。

附录：如果您确实想要/需要将图像嵌入表格结构中，我建议您使用环境tabular*并将其宽度设置为，\textwidth以便为图像分配尽可能多的宽度。看起来有点奇怪的构造@{\extracolsep{\fill}}将两列最大限度地分开。

\begin{figure}[htb]
\begin{tabular*}{\textwidth}{@{} c @{\extracolsep{\fill}} c @{}}
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image1.jpg}&
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image2.jpg}\\
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image3.jpg}&
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image4.jpg}\\
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image5.jpg}&
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image6.jpg}\\
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image7.jpg}&
    \includegraphics[width=0.45\textwidth]{../random_forest/TP-Pred/image8.jpg}\\
\end{tabular*}
\caption{A plot of the random forest error split culmulatively over the 4 sets of features}
\end{figure}

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