5

I need to superimpose a line graph over a stacked grouped bar graph (similar to answer to the question: Two level labels in bar plot).

I have to superimpose a line graph for each group (it breaks at boundary of group). For example: First line graph connects S1, S2, S3; Second connects S4, S5, S6; and last one connects S7, S8, S9, S10.

[Edit]

I have managed to superimpose line graph on stacked bar graph. But I need a non-continuous line graph.

Currently, points (S3,S4), (S6,S7) are also connected, which I don't want in my graph. How can I generate a graph like that?

\documentclass{article}

\usepackage{tikz}
\usepackage{pgfplots}

\makeatletter
\newcounter{groupcount}
\pgfplotsset{
    draw group line/.style n args={5}{
        after end axis/.append code={
            \setcounter{groupcount}{0}
            \pgfplotstableforeachcolumnelement{#1}\of\datatable\as\cell{%
                \def\temp{#2}
                \ifx\temp\cell
                    \ifnum\thegroupcount=0
                        \stepcounter{groupcount}
                        \pgfplotstablegetelem{\pgfplotstablerow}{[index]0}\of\datatable
                        \coordinate [yshift=#4] (startgroup) at (axis cs:\pgfplotsretval,0);
                    \else
                        \pgfplotstablegetelem{\pgfplotstablerow}{[index]0}\of\datatable
                        \coordinate [yshift=#4] (endgroup) at (axis cs:\pgfplotsretval,0);
                    \fi
                \else
                    \ifnum\thegroupcount=1
                        \setcounter{groupcount}{0}
                        \draw [
                            shorten >=-#5,
                            shorten <=-#5
                        ] (startgroup) -- node [anchor=north] {#3} (endgroup);
                    \fi
                \fi
            }
            \ifnum\thegroupcount=1
                        \setcounter{groupcount}{0}
                        \draw [
                            shorten >=-#5,
                            shorten <=-#5
                        ] (startgroup) -- node [anchor=north] {#3} (endgroup);
            \fi
        }
    }
}
\makeatother

\pgfplotstableread{
1   19.178  26.027  8.219   6.849   39.726  1
2   54.795  21.918  4.110   6.849   12.329  1
3   28.767  16.438  6.849   8.219   39.726  1
4   63.014  2.740   2.740   2.740   28.767  2
5   90.411  1.370   6.849   0.000   1.370  2
6   15.068  2.740   16.438  8.219   57.534  2
7   67.123  0.000   0.000   1.000   32.877  3
8   72.603  6.849   5.479   5.000   15.068  3
9   56.164  12.329  6.849   4.110   20.548  3
10  50.685  4.110   8.219   1.370   35.616  3
}\datatable

\begin{document}
\makeatletter
\begin{tikzpicture}
\begin{axis}[
    ylabel=label,
    xtick=data,
    xticklabels={S1,S2,S3,S4,S5,S6,S7,S8,S9,S10},
    enlarge y limits=false,
    enlarge x limits=0.1,
    ymin=0,ymax=100,
    ybar stacked,
    bar width=10pt,
    legend style={
      font=\footnotesize,
      cells={anchor=west},
      legend columns=5,
      at={(0.3,-0.20)},
      anchor=north,
      /tikz/every even column/.append style={column sep=0.2cm}
    },
     draw group line={[index]6}{1}{X Group}{-3.5ex}{7pt},
    draw group line={[index]6}{2}{Y Group}{-3.5ex}{7pt},
    draw group line={[index]6}{3}{Z Group}{-3.5ex}{7pt}
]

\addplot table[x index=0,y index=1] \datatable;
\addplot table[x index=0,y index=2] \datatable;
\addplot table[x index=0,y index=3] \datatable;
\legend{Far,Near,Here}
\end{axis}

\begin{axis}[
    ylabel=label,
    xtick=data,
    xticklabels={S1,S2,S3,S4,S5,S6,S7,S8,S9,S10},
    enlarge y limits=false,
    enlarge x limits=0.1,
    ymin=0,ymax=100,
    legend style={
      font=\footnotesize,
      cells={anchor=west},
      legend columns=5,
      at={(0.71,-0.20)},
      anchor=north,
      /tikz/every even column/.append style={column sep=0.2cm}
    },
     draw group line={[index]6}{1}{X Group}{-3.5ex}{7pt},
    draw group line={[index]6}{2}{Y Group}{-3.5ex}{7pt},
    draw group line={[index]6}{3}{Z Group}{-3.5ex}{7pt}
]

\addplot table[x index=0,y index=4] \datatable;
\legend{There}
\end{axis}
\end{tikzpicture}
\end{document}

enter image description here

  • Welcome to TeX.SX! Please help us to help you and add a minimal working example (MWE) that illustrates your problem. It will be much easier for us to reproduce your situation and find out what the issue is when we see compilable code, starting with \documentclass{...} and ending with \end{document}. – jub0bs Mar 20 '14 at 22:48
3

I initially thought this could be done with a single \addplot command with no modifications to the data table; apparently this is not the case (See How to interrupt a plot?).

However, you can splitting the plot in three and restrict domains using restrict x to domain, as suggested by alfC in his answer to the linked question:

\documentclass{article}
\usepackage{tikz}
\usepackage{pgfplots}

\makeatletter
\newcounter{groupcount}
\pgfplotsset{
    draw group line/.style n args={5}{
        after end axis/.append code={
            \setcounter{groupcount}{0}
            \pgfplotstableforeachcolumnelement{#1}\of\datatable\as\cell{%
                \def\temp{#2}
                \ifx\temp\cell
                    \ifnum\thegroupcount=0
                        \stepcounter{groupcount}
                        \pgfplotstablegetelem{\pgfplotstablerow}{[index]0}\of\datatable
                        \coordinate [yshift=#4] (startgroup) at (axis cs:\pgfplotsretval,0);
                    \else
                        \pgfplotstablegetelem{\pgfplotstablerow}{[index]0}\of\datatable
                        \coordinate [yshift=#4] (endgroup) at (axis cs:\pgfplotsretval,0);
                    \fi
                \else
                    \ifnum\thegroupcount=1
                        \setcounter{groupcount}{0}
                        \draw [
                            shorten >=-#5,
                            shorten <=-#5
                        ] (startgroup) -- node [anchor=north] {#3} (endgroup);
                    \fi
                \fi
            }
            \ifnum\thegroupcount=1
                        \setcounter{groupcount}{0}
                        \draw [
                            shorten >=-#5,
                            shorten <=-#5
                        ] (startgroup) -- node [anchor=north] {#3} (endgroup);
            \fi
        }
    }
}
\makeatother

\pgfplotstableread{
1   19.178  26.027  8.219   6.849   39.726  1
2   54.795  21.918  4.110   6.849   12.329  1
3   28.767  16.438  6.849   8.219   39.726  1
4   63.014  2.740   2.740   2.740   28.767  2
5   90.411  1.370   6.849   0.000   1.370  2
6   15.068  2.740   16.438  8.219   57.534  2
7   67.123  0.000   0.000   1.000   32.877  3
8   72.603  6.849   5.479   5.000   15.068  3
9   56.164  12.329  6.849   4.110   20.548  3
10  50.685  4.110   8.219   1.370   35.616  3
}\datatable

\begin{document}

\begin{tikzpicture}
\begin{axis}[
    ylabel=label,
    xtick=data,
    xticklabels={S1,S2,S3,S4,S5,S6,S7,S8,S9,S10},
    enlarge y limits=false,
    enlarge x limits=0.1,
    ymin=0,ymax=100,
    ybar stacked,
    bar width=10pt,
    legend style={
      font=\footnotesize,
      cells={anchor=west},
      legend columns=5,
      at={(0.3,-0.20)},
      anchor=north,
      /tikz/every even column/.append style={column sep=0.2cm}
    },
]
\addplot table[x index=0,y index=1] \datatable;
\addplot table[x index=0,y index=2] \datatable;
\addplot table[x index=0,y index=3] \datatable;
\legend{Far,Near,Here}
\end{axis}
\begin{axis}[
    ylabel=label,
    xtick=data,
    xticklabels={S1,S2,S3,S4,S5,S6,S7,S8,S9,S10},
    enlarge y limits=false,
    enlarge x limits=0.1,
    ymin=0,ymax=100,
    legend style={
      font=\footnotesize,
      cells={anchor=west},
      legend columns=5,
      at={(0.71,-0.20)},
      anchor=north,
      /tikz/every even column/.append style={column sep=0.2cm}
    },
    draw group line={[index]6}{1}{X Group}{-3.5ex}{7pt},
    draw group line={[index]6}{2}{Y Group}{-3.5ex}{7pt},
    draw group line={[index]6}{3}{Z Group}{-3.5ex}{7pt}
]

\addplot+[forget plot] table[x index=0,y index=4, restrict x to domain=0:3] \datatable;
\addplot+[forget plot] table[x index=0,y index=4, restrict x to domain=4:6] \datatable;
\addplot+ table[x index=0,y index=4, restrict x to domain=7:10] \datatable;
\legend{There}
\end{axis}
\end{tikzpicture}

\end{document}

enter image description here

  • I have managed to add a line graph on the bar graph. But, the line graph is continuous from S1 to S10. How can I break the line graph? For example, no line between S3 and S4; S6 and S7. Thanks. – Ronak Mar 21 '14 at 13:31
  • @Ronak Sorry, but I'm confused. I don't know what you mean by "line graph"; I though you were referring to a straight line, but apparently this is not the case. Can you please explain what exactly are you trying to do? Also it would hel a lot of you edit your question and add there the code you are using to add the "line graph" you mentioned in your previous comment. – Gonzalo Medina Mar 21 '14 at 20:46
  • Sorry, I guess I uploaded the incomplete code before. I have updated the question now. Thanks. – Ronak Mar 23 '14 at 11:21
  • @Ronak No problem. Now I know what you meant. Please see my updated answer. – Gonzalo Medina Mar 23 '14 at 20:58
  • Thanks so much. It perfectly solves my problem :). The other technique suggested on your questions is also good as it'll reduce the number of lines of code. I'll try if that can fit into my full graph. – Ronak Mar 24 '14 at 4:39

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