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绘制堆叠条形图组

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绘制堆叠条形图组

我正在使用以下代码绘制带组的条形图。但我还想细分一些条形，在底部加阴影。例如，我希望最左边的条形直到数字 1 都有阴影/图案。此外，我想在图例中包含阴影所代表的内容，作为单个额外条目。有什么想法吗？

\documentclass{standalone}
\usepackage{tikz}
\usepackage{pgfplots}

\usetikzlibrary{shapes,arrows,positioning,fit,patterns}

\begin{document}

\begin{tikzpicture}
    \begin{axis}[
    width=8cm, height=8cm,
    ybar,
    bar width=35pt,
    ymin=0,
    ymax = 6,
    xtick=data,
    enlarge x limits=0.5,
    xticklabels={{Did 1st},{Did 2nd}},
    x tick label style={text width=2cm,align=center},
    ylabel={Number of groups},
    nodes near coords,
    nodes near coords align={vertical},
    area legend,
    legend style={draw=none,cells={anchor=west},legend pos=outer north east},
  ]
  \addplot [color=black,fill=cyan,point meta=explicit symbolic] coordinates{(1,4) [67\%] (2,3) [50\%]};
  \addlegendentry{Experimental}
  \addplot [color=black,fill=red,point meta=explicit symbolic] coordinates{(1,1) [17\%] (2,2) [33\%]};
  \addlegendentry{Control}  
  \end{axis}
\end{tikzpicture}

\end{document}

答案1

不幸的是，我认为没有自动的方法（如果没有，也许可能是功能请求），但最好的选择可能是手动定位一个节点，然后手动添加条目。

我尝试了各种方法，但这似乎是唯一的方法。

输出

图1

代码

\documentclass[margin=10pt]{standalone}
\usepackage{tikz}
\usepackage{pgfplots}

\pgfplotsset{compat=1.10,
/pgfplots/patt/.style={
legend image code/.code={
\begin{scope}[yshift=-.1cm]
\draw[pattern=north west lines, pattern color=black] (0cm,0cm) rectangle (6mm,2mm);
\end{scope}
  }
 }
}

\usetikzlibrary{shapes,arrows,positioning,fit,patterns,fillbetween}

\begin{document}

\begin{tikzpicture}
\begin{axis}[
        width=8cm, height=8cm,
        ybar,
        bar width=35pt,
        ymin=0,
        ymax = 6,
        xtick=data,
        enlarge x limits=0.5,
        xticklabels={{Did 1st},{Did 2nd}},
        x tick label style={text width=2cm,align=center},
        ylabel={Number of groups},
        nodes near coords,
        nodes near coords align={vertical},
        area legend,
        legend style={draw=none,cells={anchor=west},legend pos=outer north east},
    ]
    \addplot [color=black,fill=cyan,point meta=explicit symbolic] coordinates{(1,4) [67\%] (2,3) [50\%]};
    \addlegendentry{Experimental}

    \addplot [color=black,fill=red,point meta=explicit symbolic] coordinates{(1,1) [17\%] (2,2) [33\%]};
    \addlegendentry{Control} 

    \node[draw,anchor=south east,pattern color=black, pattern=north west lines, minimum width=35pt,minimum height=30.3pt,xshift=-.8pt] at (0,0) {};
    \addlegendimage{patt}
    \addlegendentry{Pattern}
    \end{axis}
\end{tikzpicture}
\end{document}

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