19

I am new to LaTeX. How can I draw a boxplot in LaTeX. My data set is as below

index median box_top box_bottom whisker_top whisker_bottom
0 1 1.2 0.4 1.5 0.2
1 2 2.3 1.5 2.7 1
2 0.7 1.4 0.5 1.9 0.1

I am using Kile on Ubuntu 12.04 LTS.

EDIT: Code is added with output.

    \documentclass{minimal}
    \usepackage{pgfplots}
    \usepackage{filecontents}

    \begin{filecontents}{testdata.dat}
     0 1 1.2 0.4 1.5 0.2
     1 2 2.3 1.5 2.7 1
     2 0.7 1.4 0.5 1.9 0.1
     3 1 1.2 0.4 1.5 0.2
     4 2 2.3 1.5 2.7 1
     5 0.7 1.4 0.5 1.9 0.1
    \end{filecontents}

    \pgfplotsset{
     box plot width/.initial=1em,
     box plot/.style={
        /pgfplots/.cd,
        black,
        only marks,
        mark=-,
        mark size=\pgfkeysvalueof{/pgfplots/box plot width},
        /pgfplots/error bars/.cd,
        y dir=plus,
        y explicit,
     },
     box plot box/.style={
        /pgfplots/error bars/draw error bar/.code 2 args={%
            \draw  ##1 -- ++(\pgfkeysvalueof{/pgfplots/box plot width},0pt) |- ##2 -- ++(-\pgfkeysvalueof{/pgfplots/box plot width},0pt) |- ##1 -- cycle;
        },
        /pgfplots/table/.cd,
        y index=2,
        y error expr={\thisrowno{3}-\thisrowno{2}},
        /pgfplots/box plot
     },
     box plot top whisker/.style={
        /pgfplots/error bars/draw error bar/.code 2 args={%
            \pgfkeysgetvalue{/pgfplots/error bars/error mark}%
            {\pgfplotserrorbarsmark}%
            \pgfkeysgetvalue{/pgfplots/error bars/error mark options}%
            {\pgfplotserrorbarsmarkopts}%
            \path ##1 -- ##2;
        },
        /pgfplots/table/.cd,
        y index=4,
        y error expr={\thisrowno{2}-\thisrowno{4}},
        /pgfplots/box plot
     },
     box plot bottom whisker/.style={
        /pgfplots/error bars/draw error bar/.code 2 args={%
            \pgfkeysgetvalue{/pgfplots/error bars/error mark}%
            {\pgfplotserrorbarsmark}%
            \pgfkeysgetvalue{/pgfplots/error bars/error mark options}%
            {\pgfplotserrorbarsmarkopts}%
            \path ##1 -- ##2;
        },
        /pgfplots/table/.cd,
        y index=5,
        y error expr={\thisrowno{3}-\thisrowno{5}},
        /pgfplots/box plot
     },
     box plot median/.style={
        /pgfplots/box plot
     }
    }

    \begin{document}
    \begin{tikzpicture}
    \begin{axis} [enlarge x limits=0.5,xtick=data, box plot width=0.5em]
     \addplot [box plot median] table {testdata.dat};
     \addplot [box plot box] table {testdata.dat};
     \addplot [box plot top whisker] table {testdata.dat};
     \addplot [box plot bottom whisker] table {testdata.dat};
    \end{axis}
    \end{tikzpicture}
    \end{document}

enter image description here

EDIT 2: here is the actual data I am trying to plot

%index median box_top box_bottom whisker_top whisker_bottom
0.52 21.5 191.5 4 150842.5 3
0.53 17 71.5 3 30840.5 2
0.54 5 1 2 2799 1
0.55 9 54 3 2425 2
0.56 4 11.5 2 643.5 1
0.57 3 10 2 124 1
darthbith
  • 7,384
Pratibha
  • 373
  • this blog may help you http://blog.ufes.br/fabiomolinares/category/latex/ –  May 20 '13 at 08:03
  • I tried this, it is giving me vertical V as drawing –  May 20 '13 at 08:48
  • How about http://tex.stackexchange.com/questions/84541/simpler-boxplots-in-pgfplots-is-this-possible – Uwe Ziegenhagen May 20 '13 at 12:51
  • Welcome to TeX.SX! Your post was migrated here from another Stack Exchange site. Please register on this site, too, and make sure that both accounts are associated with each other (by using the same OpenID), otherwise you won't be able to comment on or accept answers or edit your question. – jub0bs May 20 '13 at 12:55
  • Related: http://tex.stackexchange.com/questions/3983/can-i-use-pgfplots-to-make-a-boxplot?rq=1 – jub0bs May 20 '13 at 13:01
  • pgfplots comes with a "statistics" library which can compute and/or draw box plots (as of version 1.8), see http://www.ctan.org/pkg/pgfplots – Christian Feuersänger May 20 '13 at 13:27
  • All I am getting from codes mentioned in above links in a zigzag line with points as median – Pratibha May 21 '13 at 09:45
  • CAn Someone please help me as I an not getting a simple box plot from any example given at any website, all I am getting is zigzag curve. – Pratibha May 21 '13 at 12:22

1 Answers1

27

Boxplots are described in chapter 5.9.1 of the PGFPLOTS manual. [EDIT chapter 5.12.1 as of pgfplots v. 1.13]

Using your data with the examples in the manual I get:

\documentclass{article}
\usepackage{pgfplots}
\pgfplotsset{compat=1.8}
\usepgfplotslibrary{statistics}
\begin{document}

\begin{tikzpicture}
  \begin{axis}
    [
    ytick={1,2,3},
    yticklabels={Index 0, Index 1, Index 2},
    ]
    \addplot+[
    boxplot prepared={
      median=1,
      upper quartile=1.2,
      lower quartile=0.4,
      upper whisker=1.5,
      lower whisker=0.2
    },
    ] coordinates {};
    \addplot+[
    boxplot prepared={
      median=2,
      upper quartile=2.3,
      lower quartile=1.5,
      upper whisker=2.7,
      lower whisker=1
    },
    ] coordinates {};
    \addplot+[
    boxplot prepared={
      median=0.7,
      upper quartile=1.4,
      lower quartile=0.5,
      upper whisker=1.9,
      lower whisker=0.1
    },
    ] coordinates {};
  \end{axis}
\end{tikzpicture}

\end{document}

Togh
  • 582
Håkon Malmedal
  • 3,712