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在 pgfplots 中向条形图添加单点

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在 pgfplots 中向条形图添加单点

我有一个条形图，我想在其中添加一些叠加在条形上的单点。与误差线相比，这些点处于另一个尺度。下面，我用绿色表示这些单点。请注意，我还想在图例中添加一个引用这些点的条目。理想情况下，这些点应位于每对条形的中间。我在更改第二个 y 轴（units）的范围时遇到了一些困难，它显示在范围内[0,1]，但理想情况下希望它在范围内。是否还可以为每个单点添加标签？欢迎 [1,5]对代码提出任何建议和改进;-)latex在此处输入图片描述

\documentclass[a4paper]{article}
\usepackage{pgfplots}
\usepackage{pgfplotstable}
\pgfplotsset{compat=newest}

\begin{document}

\begin{tikzpicture}

\node [align=center, font=\small, rotate=45,
text width=2.15cm, inner sep=0.25cm] at (0.6cm, -0.65cm) {\textsc{year 1}};

\node [align=center, font=\small, rotate=45,
text width=2.15cm, inner sep=0.25cm] at (2.90cm, -0.65cm) {\textsc{year 2}};

\node [align=center,font=\small, rotate=45,
text width=2.15cm, inner sep=0.25cm] at (5.30cm, -0.73cm) {\textsc{year 3}};

\begin{axis}[
    title style={align=center, yshift=-0.35em},
    ybar,
    ymin={60}, ymax={93.5},
    width={8cm}, height={5cm},
    bar width={7pt},
    ticks=both,
    ytick={60,70,80,90,100.0},
    ylabel style={yshift=-0.65em},
    ylabel={Percent},
    ymajorgrids,
    nodes near coords = \rotatebox{90}{{\pgfmathprintnumber[fixed zerofill, precision=2]{\pgfplotspointmeta}}},
    nodes near coords align={vertical},
    every node near coord/.append style={font=\small, yshift=0.25mm},
    xtick = data,
    table/header=false,
    table/row sep=\\,
    xticklabels={},
    enlarge y limits={value=0.2,upper},
    legend style={font=\tiny},
    %legend pos=north west
    %legend style={at={(0.5, 1.20)}, anchor=north, legend columns=2},
    legend style={at={(0.5, -0.52)}, anchor=north, legend columns=2},
]
\addplot table[x expr=\coordindex,y index=0]{89.17\\71.71\\81.41\\};
\addplot table[x expr=\coordindex,y index=0]{70.60\\64.11\\84.92\\};
\draw (axis cs:0.52,0) -- ({axis cs:0.52,0}|-{rel axis cs:0.5,1});
\draw (axis cs:1.49,0) -- ({axis cs:1.49,0}|-{rel axis cs:0.5,1});
\draw (axis cs:2.50,0) -- ({axis cs:2.50,0}|-{rel axis cs:0.5,1});
\legend{\textsc{Prod 1}\hspace*{8pt}, \textsc{Prod 2} }
\end{axis}

\begin{axis}[
    axis y line*={right},
    axis x line={none},
    ymin={1}, ymax={5},
    width={8cm}, height={5cm},
    ylabel style={yshift=0.60em},
    ylabel={units},
    ytick={1,2,3,4,5}
]
% add points here?
\end{axis}

\end{tikzpicture}
\end{document}

答案1

你可以像这样绘制这些圆圈

\begin{axis}[
    axis y line*={right},
    axis x line={none},
    ymin={1}, ymax={5},
    width={8cm}, height={5cm},
    ylabel style={xshift=0.60em},
    ylabel={units},
]
\addplot[only marks,mark=*,mark size=3pt,green,
         nodes near coords = \rotatebox{90}{{\pgfmathprintnumber[fixed zerofill,
                                    precision=2]{\pgfplotspointmeta}}},
        nodes near coords align={vertical},
        point meta=y,
        every node near coord/.append style={font=\small, yshift=0.25mm},
        ]  coordinates {
    (1,3.5) (2,4) (3,2)
};
\end{axis}

并添加

\addlegendimage{draw=green,fill=green!30}
\addlegendentry{\textsc{Legend}}

添加额外的图例。您必须legend columns=3另外制作。

完整代码：

\documentclass[a4paper]{article}
\usepackage{pgfplots}
\usepackage{pgfplotstable}
\pgfplotsset{compat=1.11}

\begin{document}

\begin{tikzpicture}

\node [align=center, font=\small, rotate=45,
text width=2.15cm, inner sep=0.25cm] at (0.6cm, -0.65cm) {\textsc{year 1}};

\node [align=center, font=\small, rotate=45,
text width=2.15cm, inner sep=0.25cm] at (2.90cm, -0.65cm) {\textsc{year 2}};

\node [align=center,font=\small, rotate=45,
text width=2.15cm, inner sep=0.25cm] at (5.30cm, -0.73cm) {\textsc{year 3}};

\begin{axis}[
    title style={align=center, yshift=-0.35em},
    ybar,
    ymin={60}, ymax={93.5},
    width={8cm}, height={5cm},
    bar width={7pt},
    ticks=both,
    ytick={60,70,80,90,100.0},
    ylabel style={yshift=-0.65em},
    ylabel={Percent},
    ymajorgrids,
    nodes near coords = \rotatebox{90}{{\pgfmathprintnumber[fixed zerofill, precision=2]{\pgfplotspointmeta}}},
    nodes near coords align={vertical},
    every node near coord/.append style={font=\small, yshift=0.25mm},
    xtick = data,
    table/header=false,
    table/row sep=\\,
    xticklabels={},
    enlarge y limits={value=0.2,upper},
    legend style={font=\tiny},
    %legend pos=north west
    %legend style={at={(0.5, 1.20)}, anchor=north, legend columns=2},
    legend style={at={(0.5, -0.52)}, anchor=north, legend columns=3},
]
\addplot table[x expr=\coordindex,y index=0]{89.17\\71.71\\81.41\\};
\addplot table[x expr=\coordindex,y index=0]{70.60\\64.11\\84.92\\};
\draw (axis cs:0.52,0) -- ({axis cs:0.52,0}|-{rel axis cs:0.5,1});
\draw (axis cs:1.49,0) -- ({axis cs:1.49,0}|-{rel axis cs:0.5,1});
\draw (axis cs:2.50,0) -- ({axis cs:2.50,0}|-{rel axis cs:0.5,1});
\legend{\textsc{Prod 1}\hspace*{8pt}, \textsc{Prod 2}}
\addlegendimage{draw=green,fill=green!30}
\addlegendentry{\textsc{Legend}}
\end{axis}

\begin{axis}[
    axis y line*={right},
    axis x line={none},
    ymin={1}, ymax={5},
    width={8cm}, height={5cm},
    ylabel style={xshift=0.60em},
    ylabel={units},
]
\addplot[only marks,mark=*,mark size=3pt,green,
         nodes near coords = \rotatebox{90}{{\pgfmathprintnumber[fixed zerofill,
                                    precision=2]{\pgfplotspointmeta}}},
        nodes near coords align={vertical},
        point meta=y,
        every node near coord/.append style={font=\small, yshift=0.25mm},
        ]  coordinates {
    (1,3.5) (2,4) (3,2)
};
\end{axis}

\end{tikzpicture}
\end{document}

在此处输入图片描述

如果您只想在某些点显示圆圈，最好画出来。

\documentclass[a4paper]{article}
\usepackage{pgfplots}
\usepackage{pgfplotstable}
\pgfplotsset{compat=1.11}

\begin{document}

\begin{tikzpicture}

\node [align=center, font=\small, rotate=45,
text width=2.15cm, inner sep=0.25cm] at (0.6cm, -0.65cm) {\textsc{year 1}};

\node [align=center, font=\small, rotate=45,
text width=2.15cm, inner sep=0.25cm] at (2.90cm, -0.65cm) {\textsc{year 2}};

\node [align=center,font=\small, rotate=45,
text width=2.15cm, inner sep=0.25cm] at (5.30cm, -0.73cm) {\textsc{year 3}};

\begin{axis}[
    title style={align=center, yshift=-0.35em},
    ybar,
    ymin={60}, ymax={93.5},
    width={8cm}, height={5cm},
    bar width={7pt},
    ticks=both,
    ytick={60,70,80,90,100.0},
    ylabel style={yshift=-0.65em},
    ylabel={Percent},
    ymajorgrids,
    nodes near coords = \rotatebox{90}{{\pgfmathprintnumber[fixed zerofill, precision=2]{\pgfplotspointmeta}}},
    nodes near coords align={vertical},
    every node near coord/.append style={font=\small, yshift=0.25mm},
    xtick = data,
    table/header=false,
    table/row sep=\\,
    xticklabels={},
    enlarge y limits={value=0.2,upper},
    legend style={font=\tiny},
    %legend pos=north west
    %legend style={at={(0.5, 1.20)}, anchor=north, legend columns=2},
    legend style={at={(0.5, -0.52)}, anchor=north, legend columns=3},
]
\addplot table[x expr=\coordindex,y index=0]{89.17\\71.71\\81.41\\};
\addplot table[x expr=\coordindex,y index=0]{70.60\\64.11\\84.92\\};
\draw (axis cs:0.52,0) -- ({axis cs:0.52,0}|-{rel axis cs:0.5,1});
\draw (axis cs:1.49,0) -- ({axis cs:1.49,0}|-{rel axis cs:0.5,1});
\draw (axis cs:2.50,0) -- ({axis cs:2.50,0}|-{rel axis cs:0.5,1});
%\fill[green] (axis cs:0,85) circle(3pt) node [right,rotate=90] {85};
\fill[green] (axis cs:1,90) circle(3pt) node [right,rotate=90] {90};
\fill[green] (axis cs:2,70) circle(3pt) node [right,rotate=90] {70};
\legend{\textsc{Prod 1}\hspace*{8pt}, \textsc{Prod 2}}
\addlegendimage{draw=green,fill=green!30}
\addlegendentry{\textsc{Legend}}
\end{axis}

\begin{axis}[
    axis y line*={right},
    axis x line={none},
    ymin={1}, ymax={5},
    xmin=0,xmax=5,
    width={8cm}, height={5cm},
    ylabel style={xshift=0.60em},
    ylabel={units},
]
\end{axis}

\end{tikzpicture}
\end{document}

在此处输入图片描述

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