[Tex/LaTex] pgfplots ybar plot with 2 y axes and equal shift on x axis

bar chartpgfplotspgfplotstable

I am trying to create a ybar plot with two y-axes and proper alignment on the x-axis. I have two data sets to compare and what I'm trying to get is the look of a normal ybar plot with horizontally shifted bars per tick but only with a second y-axis. What I am getting instead is a stacked ybar plot. Here is a screenshot.

I have tried shifting the second bars horizontally, but I could only shift them together with their x-axis. When making the second x-axis invisible, I could make it look almost proper but only almost. The contour box suddenly shows a gap (where only the invisible x-axis lies) and the shift is uneven around each tick. I want both bars to be evenly shifted around the tick and not the first bar directly on the tick and the second bar to its right.

Here is my MWE:

\documentclass[10pt,a4paper]{article}
\usepackage[latin1]{inputenc}
\usepackage{pgfplots}
\pgfplotsset{compat=1.12,height=0.3\textheight,legend cell align=left,tick scale binop=\times}
\pgfplotsset{grid style={loosely dotted,color=darkgray!30!gray,line width=0.6pt},tick style={black,thin}}
\pgfplotsset{every axis plot/.append style={line width=0.8pt}}
\usepackage{pgfplotstable}

    \pgfplotstableread{
        Proben-Nr   Si-Proben   Si-Differenz-abs    Si-Differenz-rel
        1   V6  11.3593 28.1270
        2   V72 13.9331 37.8023
        3   V71 9.8126  30.0322
        4   V91 7.8221  39.3675
        5   V52 2.9802  17.0464
        6   V51 1.8607  11.0570
        7   V54 0.4743  3.0959
        8   V55 0.4464  3.1361
        9   V53 -0.3831 -2.7133
        10  V4  -6.1150 -46.745
        11  V31 0.5284  5.0706
        12  V3  -0.5891 -7.7555
        13  V32 -0.3487 -4.6406
        14  V2  -2.0608 -53.916
        15  V34 -4.2070 -153.28
        16  V35 -5.8963 -218.38
        17  V1  -4.3101 -260.54 
    }\Palermo

\begin{document}


    \begin{figure}[htbp]
        % Si Error
        \centering
        \begin{tikzpicture}
        \pgfplotsset{
            scale only axis,
            xmin=0,
            xmax=18,
            width=0.9\textwidth,
            height=0.30\textheight,
        }
        \begin{axis}[
        ymin=-15,
        ymax=15,
        axis y line*=left,
        ybar,
        bar width=0.25,
        xlabel={Probe},
        ylabel={Absoluter Fehler in at\%},
        xtick={1,2,...,17},
        xticklabel style={rotate=45,anchor=north east},
        xticklabels from table={\Palermo}{Si-Proben},
        xtick align=inside,
        xticklabel pos=left,
        grid,
        legend pos= south west
        ]
        \addplot [fill=blue,]
        table[x = Proben-Nr, y = Si-Differenz-abs,]{\Palermo};
        \legend{Absoluter Fehler}
        \end{axis}
        \begin{axis} [
        ymin=-300,
        ymax=300,
        axis y line*=right,
        axis x line*=none,
        ybar,
        bar width=0.25,
        ylabel={Relativer Fehler in \%},
        xtick={1,2,...,18},
        xticklabel style={rotate=45,anchor=north east},
        xticklabels from table={\Palermo}{Si-Proben},
        xtick align=inside,
        xticklabel pos=left,
        legend pos= north east
        ]
        \addplot [fill=red]
        table[x = Proben-Nr, y = Si-Differenz-rel]{\Palermo};
        \legend{Relativer Fehler}
        \end{axis}
        \end{tikzpicture}
        \caption{Si absolute und relative Abweichung}
    \end{figure}
\end{document}

Best Answer

Move red bars with xshift=0.5*\pgfplotbarwidth, and blue bars with xshift=-0.5*\pgfplotbarwidth.

\documentclass[10pt,a4paper]{article}
\usepackage[latin1]{inputenc}
\usepackage{pgfplots}
\pgfplotsset{compat=1.12,height=0.3\textheight,legend cell align=left,tick scale binop=\times}
\pgfplotsset{grid style={loosely dotted,color=darkgray!30!gray,line width=0.6pt},tick style={black,thin}}
\pgfplotsset{every axis plot/.append style={line width=0.8pt}}
\usepackage{pgfplotstable}

    \pgfplotstableread{
        Proben-Nr   Si-Proben   Si-Differenz-abs    Si-Differenz-rel
        1   V6  11.3593 28.1270
        2   V72 13.9331 37.8023
        3   V71 9.8126  30.0322
        4   V91 7.8221  39.3675
        5   V52 2.9802  17.0464
        6   V51 1.8607  11.0570
        7   V54 0.4743  3.0959
        8   V55 0.4464  3.1361
        9   V53 -0.3831 -2.7133
        10  V4  -6.1150 -46.745
        11  V31 0.5284  5.0706
        12  V3  -0.5891 -7.7555
        13  V32 -0.3487 -4.6406
        14  V2  -2.0608 -53.916
        15  V34 -4.2070 -153.28
        16  V35 -5.8963 -218.38
        17  V1  -4.3101 -260.54 
    }\Palermo


\begin{document}


    \begin{figure}[htbp]
        % Si Error
        \centering
        \begin{tikzpicture}
        \pgfplotsset{
            scale only axis,
            xmin=0,
            xmax=18,
            width=0.9\textwidth,
            height=0.30\textheight,
        }
        \begin{axis}[
        ymin=-15,
        ymax=15,
        axis y line*=left,
        ybar,
        bar width=0.25,
        xlabel={Probe},
        ylabel={Absoluter Fehler in at\%},
        xtick={1,3,...,39},
        xticklabel style={rotate=45,anchor=north east},
        xticklabels from table={\Palermo}{Si-Proben},
        xtick align=inside,
        xticklabel pos=left,
        grid,
        legend pos= south west
        ]
        \addplot [fill=blue,xshift=-0.5*\pgfplotbarwidth]
        table[x = Proben-Nr, y = Si-Differenz-abs,]{\Palermo};
        \legend{Absoluter Fehler}
        \end{axis}
        \begin{axis} [
        ymin=-300,
        ymax=300,
        axis y line*=right,
        axis x line*=none,
        ybar,
        bar width=0.25,
        ylabel={Relativer Fehler in \%},
        xtick={2,4,...,38},
        xticklabel style={rotate=45,anchor=north east},
        xticklabels from table={\Palermo}{Si-Proben},
        xtick align=inside,
        xticklabel pos=left,
        legend pos= north east
        ]
        \addplot [fill=red,xshift=0.5*\pgfplotbarwidth]
        table[x = Proben-Nr, y = Si-Differenz-rel]{\Palermo};
        \legend{Relativer Fehler}
        \end{axis}
        \end{tikzpicture}
        \caption{Si absolute und relative Abweichung}
    \end{figure}
\end{document}

Output

Related Solutions

[Tex/LaTex] How to hide empty (value 0) ybars with pgfplots

You can use

 y filter/.expression={y==0 ? nan : y}

in the options of \addplot.

\documentclass{article}

% ---------------------------------- tikz
\usepackage{pgfplots}          % to print charts
\pgfplotsset{compat=1.12}

\begin{document}

\begin{figure}
  \centering
  \begin{tikzpicture}
    \begin{axis} [
      % general
      ybar,
      scale only axis,
      height=0.5\textwidth,
      width=1.2\textwidth,
      ylabel={\# Dots},
      nodes near coords,
      xlabel={Variation},
      xticklabel style={
        rotate=90,
        anchor=east,
      },
      %enlarge x limits={abs value={3}},
      ]
      \addplot+[y filter/.expression={y==0 ? nan : y}] table [
        x=grade,
        y=value,
      ] {
grade   value
-11 0
-10 0
-9  0
-8  0
-7  0
-6  0
-5  3
-4  1
-3  2
-2  15
-1  11
0   179
1   8
2   1
3   0
4   1
5   2
6   0
7   0
8   0
9   0
10  0
11  0
      };
    \end{axis}
  \end{tikzpicture}
\end{figure}
\end{document}

[Tex/LaTex] pgfplots: percentage in matrix plot

It does not work in your MWE because you are overwriting it by also giving the option nodes near coors to the \addplot command. Remove the latter one (or specify format here), and it will print. I added a thinspace before the percentage sign, although it can also be recommended to load the siunitx package and let that format and typeset the values for you.

Anyway, here's the quickfixed version:

\documentclass[border=3pt]{standalone}
\usepackage{pgfplots}
\pgfplotsset{%
  width=5cm,
  height=18cm,
  compat=1.13,
  colormap={blackwhite}{gray(0cm)=(1); gray(1cm)=(0.5)},
  xticklabels={LPIBG, ALL, HPIBG},
  xtick={0,...,2},
  ytick=\empty
}

\begin{document}
\begin{tikzpicture}
\begin{axis}[%
  enlargelimits=false,
  xlabel style={font=\footnotesize},
  ylabel style={font=\footnotesize},
  legend style={font=\footnotesize},
  xticklabel style={font=\footnotesize},
  yticklabel style={font=\footnotesize},
  colorbar,
  colorbar style={%
    ytick={0,20,40,60,80,100},
    yticklabels={0,20,40,60,80,100},
    yticklabel={\pgfmathprintnumber\tick\,\%},
    yticklabel style={font=\footnotesize}
  },
  point meta min=0,
  point meta max=100,
  nodes near coords={\pgfmathprintnumber\pgfplotspointmeta\,\%},
  every node near coord/.append style={xshift=0pt,yshift=-7pt, black, font=\footnotesize},
]

\addplot[
matrix plot,
mesh/cols=3,
point meta=explicit]
table[meta=C]{
  x y C
  0 0 80
  1 0 36
  2 0 40
  0 1 64
  1 1 80
  2 1 60
  0 2 52
  1 2 84
  2 2 72
  0 3 72
  1 3 28
  2 3 32
  0 4 56
  1 4 84
  2 4 80
  0 5 72
  1 5 52
  2 5 44
  0 6 4
  1 6 84
  2 6 41
  0 7 37
  1 7 69
  2 7 84
  0 8 63
  1 8 53
  2 8 82
  0 9 78
  1 9 74
  2 9 39
  0 10 39
  1 10 63
  2 10 88
  0 11 76
  1 11 74
  2 11 49
  0 12 39
  1 12 6
  2 12 88
  0 13 46
  1 13 33
  2 13 75
  0 14 88
  1 14 67
  2 14 54
  0 15 79
  1 15 83
  2 15 75
  0 16 50
  1 16 46
  2 16 71
  0 17 92
  1 17 71
  2 17 75
  0 18 46
  1 18 33
  2 18 8
};
\end{axis}
\end{tikzpicture}
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] How to hide empty (value 0) ybars with pgfplots

[Tex/LaTex] pgfplots: percentage in matrix plot

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