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如何使用 pgfplots 在箱线图上显示平均值或平均值

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如何使用 pgfplots 在箱线图上显示平均值或平均值

我制作了以下图表：

\documentclass{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=1.8}
\usepgfplotslibrary{statistics}
\begin{document}
\begin{tikzpicture}
  \begin{axis}
    [title = {Lengths of Amplification and Deletion Regions},ylabel = {$log_{10}(Length)$},
    boxplot/draw direction=y,
    xtick={1,2,3},
    xticklabels={Amplification, Deletion, Both},
    x tick label style={font=\footnotesize, text width=2.5cm, align=center}
    ]
    \addplot+[mark = *, mark options = {red},
    boxplot prepared={
      lower whisker=2.214844,
      lower quartile=3.608312,
      median=3.895478,
      upper quartile=4.447298,
      upper whisker=4.666284
    }, color = red
    ] coordinates{(0,4.832228)(0,5.513942)(0,6.29165)(0,5.216712)(0,5.677036)(0,4.981995)(0,5.172095)(0,4.056417)};
    \addplot+[mark = *,mark options = {blue},
    boxplot prepared={
      lower whisker=3.508799,
      lower quartile=5.079821,
      median=5.481519,
      upper quartile=5.971588,
      upper whisker=6.250831
    }, color = blue
    ] coordinates{(0,6.508115)(0,6.486354)(0,6.860059)(0,6.620663)(0,7.312391)(0,7.357306)(0,6.421694)
    (0,6.479597)(0,6.690945)(0,6.661593)(0,7.271025)(0,6.396931)(0,7.035161)(0,7.371248)(0,7.033689)
    (0,7.002645)(0,6.590617)(0,7.171933)(0,6.416259)(0,5.552438)};
    \addplot+[mark = *,mark options = {green},
    boxplot prepared={
      lower whisker=2.437751,
      lower quartile=3.334956,
      median=4.336029,
      upper quartile=5.068459,
      upper whisker=5.265037
    }, color = green
    ] coordinates{(0,5.826492)(0,5.819791)(0,6.21436)(0,4.47166)};
    \end{axis}
\end{tikzpicture}
\end{document}

这使：

在此处输入图片描述

每个图表中线附近的圆圈代表相应组的平均值（对数转换）。我想将这些点变成星星，并在括号中用黑色写出相应的平均值：4.06、5.55 和 4.47。

答案1

要在箱线图上显示平均值，您可以使用average键boxplot。

我只改变了中间的黑白图，但你可以看看如何做其他的。我还纠正了是轴标签。读取手册，第 430-450 页，了解如何向平均值添加标签以及更改颜色。

在此处输入图片描述

\documentclass{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=1.8}
\usepgfplotslibrary{statistics}
\begin{document}
\begin{tikzpicture}
  \begin{axis}
    [title = {Lengths of Amplification and Deletion Regions},ylabel =
        {$\log_{10}(\hbox{Length})$},
    boxplot/draw direction=y,
    xtick={1,2,3},
    xticklabels={Amplification, Deletion, Both},
    x tick label style={font=\footnotesize, text width=2.5cm, align=center}
    ]
    \addplot+[mark = *, mark options = {red},
    boxplot prepared={
      lower whisker=2.214844,
      lower quartile=3.608312,
      median=3.895478,
      upper quartile=4.447298,
      upper whisker=4.666284
    }, color = red
    ] coordinates{(0,4.832228)(0,5.513942)(0,6.29165)(0,5.216712)(0,5.677036)(0,4.981995)(0,5.172095)(0,4.056417)};
    \addplot+[mark = *,mark options = {blue},
    boxplot prepared={
      lower whisker=3.508799,
      lower quartile=5.079821,
      median=5.481519,
      average=5.442438,
      upper quartile=5.971588,
      upper whisker=6.250831
    }, color = blue
    ] coordinates{(0,6.508115)(0,6.486354)(0,6.860059)(0,6.620663)(0,7.312391)(0,7.357306)(0,6.421694)
    (0,6.479597)(0,6.690945)(0,6.661593)(0,7.271025)(0,6.396931)(0,7.035161)(0,7.371248)(0,7.033689)
    (0,7.002645)(0,6.590617)(0,7.171933)(0,6.416259)};
    \addplot+[mark = *,mark options = {green},
    boxplot prepared={
      lower whisker=2.437751,
      lower quartile=3.334956,
      median=4.336029,
      upper quartile=5.068459,
      upper whisker=5.265037
    }, color = green
    ] coordinates{(0,5.826492)(0,5.819791)(0,6.21436)(0,4.47166)};
    \end{axis}
\end{tikzpicture}
\end{document}

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