如何同时定位相邻的 tikz 图的 x 和 y 标签？

Question

我有代码可以生成两个 tikz 图，一个在另一个之上。它用于pgfplotset定义轴的自定义样式，该样式将应用于两个图。

我正在尝试更改每个轴的 x 轴标签的位置之内自定义样式将标签放在轴的正下方。我知道我可以这样做在每个图中手动\coordinate，但如果可能的话，我想避免手动执行此操作。以下这个问题和答案，我尝试将这段代码添加到样式中：

every axis x label/.style={at={(current axis.right of origin)},anchor=west},

添加此选项会使 x 标签仅显示在第一个图中，而不显示在第二个图中。我做错了什么？

代码：

\documentclass[12pt,a4paper]{article}

\usepackage{float}
\usepackage[margin=1cm]{geometry}
\usepackage{pgfplots}
\pgfplotsset{compat=1.13}  
\pagestyle{empty}

\pgfplotsset{customaxisstyle/.style={%
        width=18cm, height=10cm,
        title={}, xlabel={$s$}, ylabel={}, xticklabels={,,}, yticklabels={,,}, axis lines=middle,   
        xmin=0, xmax=10,
        ymin=0, ymax=5,
        domain=0:10, samples=100}}

\pgfplotsset{customlinestyle1/.style={black, thick}}
\pgfplotsset{customlinestyle2/.style={blue, line width=1mm}}

\begin{document}
\begin{figure}[H]
\begin{tikzpicture}

\begin{scope}
\begin{axis}[customaxisstyle,title={Top plot}]
\addplot[customlinestyle1] {1.8 - 0.2*x};
\addplot[customlinestyle1] {3.0 - 0.4*x};
\addplot[customlinestyle1] {2.8 - 0.6*x};
\addplot[customlinestyle1] {3.8 - 0.6*x};
\addplot[customlinestyle1] {3.8 - 0.8*x};
\addplot[customlinestyle1] {5.0 - 1.2*x};
\end{axis}
\end{scope}

\begin{scope}[yshift=-10cm]
\begin{axis}[customaxisstyle, title={Bottom plot}]
\addplot[red, very thick] { 2 * sin(deg(0.5*x + 6)) + 2.5 };
\end{axis}
\end{scope}

\end{tikzpicture}
\end{figure}
\end{document}

输出：

Answer 1

您可以使用例如

 xlabel style ={at={(xticklabel cs:1,0)},anchor=east,inner sep=1pt,}

如同

\documentclass[12pt,a4paper]{article}

\usepackage{float}
\usepackage[margin=1cm]{geometry}
\usepackage{pgfplots}
\pgfplotsset{compat=1.16}  
\pagestyle{empty}

\pgfplotsset{customaxisstyle/.style={%
        width=18cm, height=10cm,
        title={}, xlabel={$s$}, ylabel={}, xticklabels={,,}, yticklabels={,,}, axis lines=middle,   
        xlabel style ={at={(xticklabel cs:1,0)},anchor=east,inner sep=1pt,},
        xmin=0, xmax=10,
        ymin=0, ymax=5,
        domain=0:10, samples=100}}

\pgfplotsset{customlinestyle1/.style={black, thick}}
\pgfplotsset{customlinestyle2/.style={blue, line width=1mm}}

\begin{document}
\begin{figure}[H]
\begin{tikzpicture}

\begin{scope}
\begin{axis}[customaxisstyle,title={Top plot}]
\addplot[customlinestyle1] {1.8 - 0.2*x};
\addplot[customlinestyle1] {3.0 - 0.4*x};
\addplot[customlinestyle1] {2.8 - 0.6*x};
\addplot[customlinestyle1] {3.8 - 0.6*x};
\addplot[customlinestyle1] {3.8 - 0.8*x};
\addplot[customlinestyle1] {5.0 - 1.2*x};
\end{axis}
\end{scope}

\begin{scope}[yshift=-10cm]
\begin{axis}[customaxisstyle, title={Bottom plot}]
\addplot[red, very thick] { 2 * sin(deg(0.5*x + 6)) + 2.5 };
\end{axis}
\end{scope}

\end{tikzpicture}
\end{figure}
\end{document}

您可以摆脱范围并yshift通过使用groupplots或仅使用矩阵进行手动调整。

\documentclass[12pt,a4paper]{article}

\usepackage{float}
\usepackage[margin=1cm]{geometry}
\usepackage{pgfplots}
\pgfplotsset{compat=1.16}  
\pagestyle{empty}

\pgfplotsset{customaxisstyle/.style={%
        width=18cm, height=10cm,
        title={}, xlabel={$s$}, ylabel={}, xticklabels={,,}, yticklabels={,,}, axis lines=middle,   
        xlabel style ={at={(xticklabel cs:1,0)},anchor=east,inner sep=1pt,},
        xmin=0, xmax=10,
        ymin=0, ymax=5,
        domain=0:10, samples=100}}

\pgfplotsset{customlinestyle1/.style={black, thick}}
\pgfplotsset{customlinestyle2/.style={blue, line width=1mm}}

\begin{document}
\begin{figure}[H]
\begin{tikzpicture}
\matrix{
\begin{axis}[customaxisstyle,title={Top plot}]
\addplot[customlinestyle1] {1.8 - 0.2*x};
\addplot[customlinestyle1] {3.0 - 0.4*x};
\addplot[customlinestyle1] {2.8 - 0.6*x};
\addplot[customlinestyle1] {3.8 - 0.6*x};
\addplot[customlinestyle1] {3.8 - 0.8*x};
\addplot[customlinestyle1] {5.0 - 1.2*x};
\end{axis}\\
\begin{axis}[customaxisstyle, title={Bottom plot}]
\addplot[red, very thick] { 2 * sin(deg(0.5*x + 6)) + 2.5 };
\end{axis}\\
};
\end{tikzpicture}
\end{figure}
\end{document}