2 个具有公共 x 轴的直方图未对齐

2 个具有公共 x 轴的直方图未对齐

我必须遵循乳胶代码:

\usepackage{tikz}
\usepackage{pgfopts}
\usepackage{pgfplotstable}
\begin{document}
\begin{tikzpicture}[scale=1]
\begin{axis}[minor tick num=1,
            scale only axis,
            height=5cm,
            width=\textwidth*0.8,
            xlabel=\textnumero contestants,
            ylabel style={overlay},
                yticklabel style={overlay},
            xticklabel style={overlay},
            ylabel=,
            ybar,
            ymin=0,
            legend style={at={(0, 1)},anchor=west},
            legend entries={\textnumero matches, \textnumero rounds}]
\addplot [draw opacity=0,fill=yellow!50] table [x index=0, y index=1] {charts/merge_no_matches_rounds.csv};
\addplot [draw opacity=0,fill=green] table [x index=0, y index=2] {charts/merge_no_matches_rounds.csv};
\end{axis}
\end{tikzpicture}
\end{document}

结果如下: 结果

数据文件如下所示:

2   1   1
4   4   3
6   9   6
8   11  6
10  17  9
12  21  9
14  23  9
. . .
92  181 18
94  185 18
96  189 18
98  191 18
100 193 18

黄色区域看起来不错,但绿色区域有奇怪的偏移。我该如何解决这个问题?

答案1

您不应该在这里使用直方图。如果黄色数据的一个值低于相应的绿色值,那么您的绘图想法就不再实用了。您应该使用真实的条形图或真实的堆叠图,而不是混合使用。(实际上,简单的曲线是最好的)

不过,我还是为您提供了一个解决方案:

% arara: pdflatex

\documentclass{article}
\usepackage{pgfplots}
\pgfplotsset{compat=1.11}
\usepgfplotslibrary{fillbetween}
\usepackage{textcomp}
\usepackage{filecontents}
\begin{filecontents*}{charts/merge_no_matches_rounds.csv}
    2   1   1
    4   4   3
    6   9   6
    8   11  6
    10  17  9
    12  21  9
    14  23  9
    92  181 18
    94  185 18
    96  189 18
    98  191 18
    100 193 18
\end{filecontents*}
\begin{document}
    \begin{figure}
        \centering
    \begin{tikzpicture}
    \begin{axis}[%
    ,minor tick num=1
    ,scale only axis
    ,height=5cm
    ,width=\textwidth*0.8
    ,xlabel=\textnumero{} contestants
    ,yticklabel style={overlay}
    ,xticklabel style={overlay}
    ,ymin=0
    ,legend cell align=left
    ,legend style={at={(0, 1)},anchor=west}]
    \addplot [draw opacity=0,name path=f,area legend,fill=yellow!50] table [x index=0, y index=1] {charts/merge_no_matches_rounds.csv};
    \addplot [draw opacity=0,name path=g,area legend,fill=green] table [x index=0, y index=2] {charts/merge_no_matches_rounds.csv};
    \path[name path=axis] (axis cs:0,0.2) -- (axis cs:100,0.2);
    \addplot [draw opacity=0,color=yellow!50,fill=yellow!50]
    fill between[of=f and axis];
    \addlegendentry{\textnumero{} matches}
    \addplot [draw opacity=0,color=green,fill=green]
    fill between[of=g and axis];
    \addlegendentry{\textnumero{} rounds}
    \end{axis}
    \end{tikzpicture}
    \end{figure}    
\end{document}

在此处输入图片描述

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