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pgfplot 的“meta”部分中的两个条目

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pgfplot 的“meta”部分中的两个条目

我需要一些关于此图的帮助：

  1. 我想合并“meta=”部分中的两个条目。它应该包含 {y*100} 值和标签值。是否可以以某种方式添加它们？最后应该有百分比值和每个条形上方的星号。
  2. 我想将星星和误差线的颜色改为黑色。
  3. 是否可以将 y 轴稍微延长一点，以便它不以水平标记线结束？

。

\documentclass{article} 
\usepackage[libertine]{newtxmath}
\usepackage{pgfplots}
%\pgfplotsset{compat=1.11}
\usepackage{filecontents} 
\usepackage{tikz} 
\usepackage{pgfplotstable}
\usetikzlibrary{positioning}
\usetikzlibrary{decorations.pathmorphing}
\usetikzlibrary{arrows}
\usetikzlibrary{patterns}

\begin{document}

  \begin{filecontents}{data1.dat}
    X Y Y_error Label
    a 1 0 \\
    b .155 .038 $\star$
    c 0.80 0.019 $\star$
    d 0.54 0.027 \\
  \end{filecontents}  

  \begin{figure}
    \begin{tikzpicture} 
      \begin{axis}[
 bar width=1cm, % Width of the bar
    x=2cm, % Distance between the centers of the bars
    enlarge x limits={abs=1cm}, % The distance between the center of the first bar and the left edge
    enlarge y limits=false,
        symbolic x coords={a,b,c,d},
            ymin=0,
        xtick=data,
        ybar,
            axis x line*=bottom,
    axis y line=left,
    clip=false,
  %  point meta={y*100}, %y-Werte mal 100 für Prozent 
    point meta=explicit symbolic,
   yticklabel={\pgfmathparse{\tick*100}\pgfmathprintnumber{\pgfmathresult}\%} ,
        nodes near coords,
        nodes near coords align={vertical},
        visualization depends on=abs(y)/y*(0.1+\thisrow{Y_error}) \as \myshift,
        every node near coord/.append style={
          anchor=center,shift={(0,transformdirectiony(\myshift))},
        }]
        \addplot+[draw=black, fill=white, error bars/.cd, y dir=both, y explicit, ]
                  table[x=X, y=Y, y error=Y_error, meta=Label,] {data1.dat};
                        \end{axis} 

    \end{tikzpicture}
  \end{figure}
  \end{document}

在此处输入图片描述

答案1

您可以使用第二个\addplot+命令来添加第二个元条目。

使用color=blackistead 仅draw=black可获得黑星和误差线。

用于ymax=1.05稍微放大 y 轴。

更新代码使用 Christian Feuersänger 的建议（参见评论）：

\documentclass[margin=10pt]{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=1.12}

\usepackage{filecontents}
\begin{filecontents}{data1.dat}
  X Y Y_error Label
  a 1 0 \\
  b .155 .038 $\star$
  c 0.80 0.019 $\star$
  d 0.54 0.027 \\
\end{filecontents}

\begin{document}
\begin{tikzpicture} 
  \begin{axis}[
      bar width=1cm,
      x=2cm,
      enlarge x limits={abs=1cm},
      symbolic x coords={a,b,c,d},
      ymin=0,
      ymax=1.05,
      xtick=data,
      axis x line*=bottom,
      axis y line=left,
      clip=false,
      yticklabel={\pgfmathparse{\tick*100}\pgfmathprintnumber{\pgfmathresult}\%} ,
      nodes near coords,
      visualization depends on=abs(y)/y*(0.15+\thisrow{Y_error}) \as \myshift,
      every node near coord/.append style={yshift=transformdirectiony(\myshift),inner sep=1pt},
    ]
    \addplot+[
        ybar,
        color=black,
        fill=white,
        mark=none,
        point meta=explicit symbolic,
        every node near coord/.append style={anchor=south},
        error bars/.cd,
          y dir=both,
          y explicit
      ]
      table[x=X, y=Y, y error=Y_error, meta=Label,] {data1.dat};
    \addplot+[
        color=black,
        only marks,
        mark=none,
        %%% as suggested by Christian Feuersänger (see comments):
        nodes near coords={$\pgfmathprintnumber{\pgfplotspointmeta}\%$},
        point meta=100*y,
        every node near coord/.append style={anchor=north,/pgf/number format/.cd, fixed, fixed zerofill=true, precision=1}
        %%%
      ]
      table[x=X, y=Y,forget plot] {data1.dat};
  \end{axis} 
\end{tikzpicture}
\end{document}

在此处输入图片描述

原始代码（不再有效）：

\documentclass[margin=10pt]{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=1.11}

\usepackage{filecontents}
\begin{filecontents}{data1.dat}
  X Y Y_error Label
  a 1 0 \\
  b .155 .038 $\star$
  c 0.80 0.019 $\star$
  d 0.54 0.027 \\
\end{filecontents}

\begin{document}
\begin{tikzpicture} 
  \begin{axis}[
      bar width=1cm,
      x=2cm,
      enlarge x limits={abs=1cm},
      symbolic x coords={a,b,c,d},
      ymin=0,
      ymax=1.05,
      xtick=data,
      axis x line*=bottom,
      axis y line=left,
      clip=false,
      yticklabel={\pgfmathparse{\tick*100}\pgfmathprintnumber{\pgfmathresult}\%} ,
      nodes near coords,
      visualization depends on=abs(y)/y*(0.15+\thisrow{Y_error}) \as \myshift,
      every node near coord/.append style={yshift=transformdirectiony(\myshift),inner sep=1pt},
    ]
    \addplot+[
        ybar,
        color=black,
        fill=white,
        mark=none,
        point meta=explicit symbolic,
        every node near coord/.append style={anchor=south},
        error bars/.cd,
          y dir=both,
          y explicit
      ]
      table[x=X, y=Y, y error=Y_error, meta=Label,] {data1.dat};
    \addplot+[
        color=black,
        only marks,
        mark=none,
        point meta={TeX code symbolic={\def\pgfplotspointmeta{\pgfmathresult\%}}},
        every node near coord/.append style={anchor=north}
      ]
      table[x=X, y=Y,forget plot] {data1.dat};
  \end{axis} 
\end{tikzpicture}
\end{document}

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