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在 LaTeX 中绘制图形

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在 LaTeX 中绘制图形

图1

我可以用 LaTeX 制作刚刚发布在这里的图形吗？

答案1

利用 Claudio Fiandrino 的建议，使用matrix来排版图表以及subcaption包和一些minipages，这是一种实现您心中的图形的方法。请注意必需的%s，以确保前两个minipages 彼此相邻而不是彼此重叠。

\documentclass{article}

\usepackage{tikz}
\usetikzlibrary{matrix}
\usepackage{subcaption}

\begin{document}

\begin{figure}
\centering

    \begin{minipage}[b]{.4\linewidth}
    \centering

        \begin{tikzpicture}

        \matrix[name=M, matrix of nodes, column sep=1cm, row sep=1cm]{
            \node[draw,minimum size=1cm]{IQ}; & \node[draw,minimum size=1cm]{Z}; \\
            \node[draw,minimum size=1cm]{JP}; & \node[draw,minimum size=1cm]{R}; \\
        };

        \draw[<->] (M-1-2) edge (M-2-2);
        \draw[<->] (M-1-1) edge (M-2-1);    
        \draw[<->] (M-1-1) edge (M-2-2);
        \draw[<->] (M-2-1) edge (M-2-2);

    \end{tikzpicture}

    \subcaption{MNAR Mechanism}\label{fig:1a}
    \end{minipage}%
%
    \begin{minipage}[b]{.4\linewidth}
    \centering

        \begin{tikzpicture}

            \matrix[name=M, matrix of nodes, column sep=1cm, row sep=1cm]{
                \node[draw,minimum size=1cm]{IQ}; & \node[draw,minimum size=1cm]{Z}; \\
                \node[draw,minimum size=1cm]{JP}; & \node[draw,minimum size=1cm]{R}; \\
            };

            \draw[<->] (M-1-2) edge (M-2-2);
            \draw[<->] (M-1-1) edge (M-2-1);    
            \draw[<->] (M-1-1) edge (M-2-2);

        \end{tikzpicture}

    \subcaption{MAR Mechanism}\label{fig:1b}
    \end{minipage}

    \begin{minipage}[b]{.4\linewidth}
    \centering

        \begin{tikzpicture}

            \matrix[name=M, matrix of nodes, column sep=1cm, row sep=1cm]{
                \node[draw,minimum size=1cm]{IQ}; & \node[draw,minimum size=1cm]{Z}; \\
                \node[draw,minimum size=1cm]{JP}; & \node[draw,minimum size=1cm]{R}; \\
            };

            \draw[<->] (M-1-2) edge (M-2-2);
            \draw[<->] (M-1-1) edge (M-2-1);

        \end{tikzpicture}

    \subcaption{MCAR Mechanism}\label{fig:1b}
    \end{minipage}

    \caption{Figures}\label{fig:1}

\end{figure}

\end{document}

在此处输入图片描述

答案2

以下是一些代码，用于近似左上图。通过调整参数，您可以获得更好的近似值。放大包含字符的框并稍微缩小包含框架框的框：

 \documentclass{article}
 \usepackage[barr,pdf]{xy}

\begin{document}
$$\bfig
 \node 1a(0,0)[\framebox{IQ}]
 \node 1b(400,0)[\framebox{Z}]
 \node 2a(0,-400)[\framebox{JP}]
 \node 2b(400,-400)[\framebox{R}]
 \arrow/<->/[1a`1b;]
 \arrow/<->/[1a`2a;]
 \arrow/<->/[1a`2b;]
 \arrow/<->/[2a`2b;]
 \arrow/<->/[1b`2b;]
 \efig$$
\end{document}

答案3

经过近四年的时间...使用subfigure环境和最新版本tikz：

在此处输入图片描述

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{arrows.meta, matrix}
\usepackage{subcaption}

\usepackage[active,floats,tightpage]{preview}% only for figure test
    \setlength\PreviewBorder{1em}

\begin{document}
    \begin{figure}
    \tikzset{
            > = Stealth,
Matrix/.style = {matrix of nodes,
                 nodes={draw, minimum size=10mm},
                 column sep=1cm, row sep=1cm}
            }
\centering
    \begin{subfigure}[t]{0.32\linewidth}
    \centering
\begin{tikzpicture}
\matrix (m) [Matrix]
{
IQ  &   Z   \\
JP  &   R   \\
};
\draw[<->]  (m-1-2) edge (m-2-2)
            (m-1-1) edge (m-2-1)
            (m-1-1) edge (m-2-2)
            (m-2-1) edge (m-2-2);
\end{tikzpicture}
\caption{MNAR Mechanism}
    \label{fig:1a}
\end{subfigure}
\hfil
\begin{subfigure}[t]{0.32\linewidth}
    \centering
\begin{tikzpicture}
\matrix (m) [Matrix]
{
IQ  &   Z   \\
JP  &   R   \\
};
\draw[<->]  (m-1-2) edge (m-2-2)
            (m-1-1) edge (m-2-1)
            (m-1-1) edge (m-2-2);
\end{tikzpicture}
\caption{NAR Mechanism}
    \label{fig:1b}
\end{subfigure}
\hfil
\begin{subfigure}[t]{0.32\linewidth}
    \centering
\begin{tikzpicture}
\matrix (m) [Matrix]
{
IQ  &   Z   \\
JP  &   R   \\
};
\draw[<->]  (m-1-2) edge (m-2-2)
            (m-1-1) edge (m-2-1);
\end{tikzpicture}
\caption{MCAR Mechanism}
    \label{fig:1c}
\end{subfigure}
    \end{figure}
\end{document}

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