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修改散点图中的某些特征（版本 3）

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修改散点图中的某些特征（版本 3）

这是呈现散点图的代码。我只想要进行两种典型的修改。首先，我想要在轴上添加标签。在 axis 环境中，我有align=center,、ylabel = Number of Unsold \\ Candy Bars,和xlabel = Number of Days,。为什么标签没有打印出来？其次，我想让表示数据的点稍微小一点，以便可以看到两个刻度标记。（x 轴上 10 处的刻度标记和 y 轴上 120 处的刻度标记似乎被散点图的点遮住了。）

\documentclass{amsart}
\usepackage{tikz}
\usetikzlibrary{calc}

\usepackage{pgfplots}
\pgfplotsset{compat=newest}

\begin{document}


\begin{tikzpicture}

\begin{axis}[grid=none, align=center, title=\textbf{George's Unsold Candy Bars},
    ylabel = Number of Unsold \\ Candy Bars,
    xlabel = Number of Days,
    xmin=0,xmax=11,ymin=0,ymax=130,
    xtick={10},ytick={120},
    yticklabel style={anchor=east},
    axis on top,axis lines=middle,
    xlabel=$x$,ylabel=$y$,
    xlabel style={at={(ticklabel* cs:1)},anchor=north west},
    ylabel style={at={(ticklabel* cs:1)},anchor=south east}
    ]

\addplot[only marks] coordinates{(0,120) (1,108) (2,96) (3,84) (4,72) (5,60) (6,48) (7,36) (8,24) (9,12) (10,0)};

\end{axis}

\coordinate (O) at (0,0);
\node (origin) at ($(O)+(225:10pt)$) {$0$};

\end{tikzpicture}

\end{document}

答案1

轴标签ylabel = Number of Unsold \\ Candy Bars和xlabel = Number of Days不会显示，因为您用ylabel = $y$和覆盖了它们xlabel = $x$。每个轴只能有一个标签。

要获得第二个标签，可以使用extra ticks：

extra x ticks       = {5.5},
extra x tick style  = {xtick style={draw=none},xticklabel style={yshift=-5mm}},
extra x tick labels = {Number of Days},
extra y ticks       = {65},
extra y tick style  = {ytick style={draw=none},yticklabel style={xshift=-5mm,rotate=90}},
extra y tick labels = {Number of Unsold \\ Candy Bars}

或\node：

\node at (3.5,-.75) {Number of Days};
\node[rotate=90,align=center] at (-1.25,3) {Number of Unsold \\ Candy Bars};

绘图标记的大小可通过选项mark size来设置\addplot。

代码：

\documentclass{amsart}
\usepackage{tikz}
\usetikzlibrary{calc}

\usepackage{pgfplots}
\pgfplotsset{compat=newest}

\begin{document}
    \begin{tikzpicture}
        \begin{axis}[   grid                = none, 
                            title               = \textbf{George's Unsold Candy Bars},
                            align               = center,
                            xmin                = 0,
                            xmax                = 11,
                            ymin                = 0,
                            ymax                = 130,
                            xtick               = {10},
                            ytick               = {120},
                            axis lines          = middle,
                            xlabel              = $x$,
                            ylabel              = $y$,
                            xlabel style        = {at={(ticklabel* cs:1)},anchor=north west},
                            ylabel style        = {at={(ticklabel* cs:1)},anchor=south east},
                            extra x ticks       = {5.5},
                            extra x tick style  = {xtick style={draw=none},xticklabel style={yshift=-5mm}},
                            extra x tick labels = {Number of Days},
                            extra y ticks       = {65},
                            extra y tick style  = {ytick style={draw=none},yticklabel style={xshift=-5mm,rotate=90}},
                            extra y tick labels = {Number of Unsold \\ Candy Bars}
                        ]

            \addplot[mark size=0.5,only marks] coordinates{(0,120) (1,108) (2,96) (3,84) (4,72) (5,60) (6,48) (7,36) (8,24) (9,12) (10,0)};
        \end{axis}

        \node at (225:10pt) {$0$};
    \end{tikzpicture}

    \vspace*{2cm}

    \begin{tikzpicture}
        \begin{axis}[   grid         = none, 
                            title        = \textbf{George's Unsold Candy Bars},
                            align        = center,
                            xmin         = 0,
                            xmax         = 11,
                            ymin         = 0,
                            ymax         = 130,
                            xtick        = {10},
                            ytick        = {120},
                            axis lines   = middle,
                            xlabel       = $x$,
                            ylabel       = $y$,
                            xlabel style = {at={(ticklabel* cs:1)},anchor=north west},
                            ylabel style = {at={(ticklabel* cs:1)},anchor=south east}
                        ]

            \addplot[mark size=0.5,only marks] coordinates{(0,120) (1,108) (2,96) (3,84) (4,72) (5,60) (6,48) (7,36) (8,24) (9,12) (10,0)};
        \end{axis}

        \node at (225:10pt) {$0$};
        \node at (3.5,-.75) {Number of Days};
        \node[rotate=90,align=center] at (-1.25,3) {Number of Unsold \\ Candy Bars};
    \end{tikzpicture}

\end{document}

extra ticks：

在此处输入图片描述

\node：

在此处输入图片描述

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