[Tex/LaTex] Dashed and Horizontal line in tikzpicture

bar chartpgfplotstikz-pgf

Wants to draw a dashed and horizontal line starts from y=98.23 (pointed in the attached image with an arrow)in a tikzpicture bar graph.

Following is the code

\documentclass[10pt,journal,compsoc]{IEEEtran}

\usepackage{pgfplots}
\usepackage{subfig}

\usetikzlibrary{positioning,shapes,arrows,shadows,patterns}

% correct bad hyphenation here
\hyphenation{op-tical net-works semi-conduc-tor}

\begin{document}
\begin{figure}
    \centering
    \captionsetup{justification = centering}
    \subfloat[xxx]{ 
        \label{11(a)}
        \begin{tikzpicture}[scale =.5, transform shape]
        \begin{axis}[   
        major x tick style = transparent,
        ybar = 2*\pgflinewidth,
        bar width=7pt,
        ymajorgrids = true,
        ylabel={xxx(\%)},
        symbolic x coords={xx, yy, zz, ll},
        xtick=data, 
        scaled y ticks = false,
        enlarge x limits=0.25,
        ymin=95,
        minor y tick num=5, 
        xlabel style={yshift=-.3cm},
        ylabel style={yshift=-.3cm},    
        tick label style={font=\footnotesize},
        legend style={at={(.5,-0.1)}, anchor=north, /tikz/every even 
column/.append style={column sep=.5cm}},
        legend columns = -1,
        ]
        \addplot[style = {fill=red, mark=none, postaction={pattern=dots}}, 
error bars/.cd, y dir=both, y explicit, error bar style ={thick}]   
        coordinates {
            (xx, 97.772418) +- (0.00477703, 0.00477703)  
            (yy, 96.83437) +- (0.039005931, 0.039005931) 
            (zz, 96.9428) +- (0.05470002, 0.05470002) 
            (ll, 96.72381) +- (0.023826187, 0.023826187)};
        \addplot[style = {fill=blue, mark=none, postaction={pattern=north 
east lines}}, error bars/.cd, y dir=both, y explicit, error bar style = 
{thick}]
        coordinates {
            (xx, 97.615588) +- (0.036178026, 0.036178026)  
            (yy, 96.77373) +- (0.045379505, 0.045379505) 
            (zz, 97.61842) +- (0.036159489, 0.036159489) 
            (ll, 96.64351) +- (0.044978336, 0.044978336)};
        \addplot[style = {fill=green, mark=none, postaction= 
 {pattern=horizontal lines}}, error bars/.cd, y dir=both, y explicit, error 
 bar style ={thick}]
        coordinates {
            (xx, 98.856128) +- (0.031866164, 0.031866164)  
            (yy, 99.00258) +- (0.026840445, 0.026840445) 
            (zz, 98.02313) +- (0.057913644, 0.057913644) 
            (ll, 98.30856) +- (0.048969882, 0.048969882)};
        \addplot[style = {fill=yellow, mark=none, postaction= 
{pattern=vertical lines}}, error bars/.cd, y dir=both, y explicit, error bar 
 style ={thick}]
        coordinates {
            (xx, 97.778428) +- (0.035212399, 0.035212399)  
            (yy, 96.82722) +- (0.045398952, 0.045398952) 
            (zz, 97.75243) +- (0.034266698, 0.034266698) 
            (ll, 96.72982) +- (0.043016218, 0.043016218)};  
        \legend{xxx, xxx, xxx, xxx}
        \end{axis}
        \end{tikzpicture}
    }
    \end{figure}
\end{document}

Best Answer

Besides the given solution by Torbjørn T. in the comment below the question you could also add an extra y tick to achieve the desired result. The only tricky part is to move this line before the bars (when the "normal" grid lines should still be behind the bars).

(I also "optimized" your code a bit which now should be simpler and hopefully more readable.)

For details please have a look at the comments in the code.

% used PGFPlots v1.16
\documentclass[border=5pt]{standalone}
\usepackage{pgfplots}
    \usetikzlibrary{patterns}
    % use this `compat' level or higher to make use of the advanced label positioning
    \pgfplotsset{compat=1.3}
\begin{document}
\begin{tikzpicture}[
    scale =.5,
    transform shape,
]
    \begin{axis}[
        ymin=95,
        ylabel={xxx (\%)},
        ybar=2*\pgflinewidth,
        bar width=7pt,
        % ----------
        % (adapted. This looks a bit strange, but currently has to be done
        %  in this way because of <https://sourceforge.net/p/pgfplots/bugs/182/>.)
        major tick length=0pt,
        ytick style={
            /pgfplots/major tick length=1.5mm,
        },
        % ----------
        ymajorgrids=true,
        symbolic x coords={xx, yy, zz, ll},
        xtick=data,
        % align the xtick labels at the baseline
        typeset ticklabels with strut,
        enlarge x limits=0.25,
        minor y tick num=5,
        legend columns = -1,
        legend style={
            at={(xticklabel cs:.5)},            % <-- (adapted)
            anchor=north,
            /tikz/every even column/.append style={
                column sep=.5cm,
            },
        },
        % ---------------------------------------------------------------------
        % added stuff
        % ---------------------------------------------------------------------
        % allow different layers
        set layers,
        % (needed because of bug <https://sourceforge.net/p/pgfplots/bugs/153/>)
        cell picture=true,
        % now add the "horizontal line" ...
        extra y ticks=98.23,
        % ... don't show any label and ...
        extra y tick labels={},
        % ... adapt the style to your needs
        extra y tick style={
            % in case you should remove the grid from the "normal" ticks ...
            ymajorgrids=true,
            % ... but don't show an extra tick (line)
            ytick style={
                /pgfplots/major tick length=0pt,
            },
            grid style={
                red,
                dashed,
                % to draw this line before the bars, move it a higher layer
                /pgfplots/on layer=axis foreground,
            },
        },
        % ---------------------------------------------------------------------
        % moved common options from the `\addplot' commands here
        mark=none,
        error bars/y dir=both,
        error bars/y explicit,
        error bars/error bar style={
            thick,
        },
    ]

        \addplot [
            fill=red,
            postaction={pattern=dots},
        ] coordinates {
            (xx, 97.772418) +- (0.00477703, 0.00477703)
            (yy, 96.83437)  +- (0.039005931, 0.039005931)
            (zz, 96.9428)   +- (0.05470002, 0.05470002)
            (ll, 96.72381)  +- (0.023826187, 0.023826187)
        };

        \addplot [
            fill=blue,
            postaction={pattern=north east lines},
        ] coordinates {
            (xx, 97.615588) +- (0.036178026, 0.036178026)
            (yy, 96.77373)  +- (0.045379505, 0.045379505)
            (zz, 97.61842)  +- (0.036159489, 0.036159489)
            (ll, 96.64351)  +- (0.044978336, 0.044978336)
        };

        \addplot [
            fill=green,
            postaction={pattern=horizontal lines},
        ] coordinates {
            (xx, 98.856128) +- (0.031866164, 0.031866164)
            (yy, 99.00258)  +- (0.026840445, 0.026840445)
            (zz, 98.02313)  +- (0.057913644, 0.057913644)
            (ll, 98.30856)  +- (0.048969882, 0.048969882)
        };

        \addplot [
            fill=yellow,
            postaction={pattern=vertical lines},
        ] coordinates {
            (xx, 97.778428) +- (0.035212399, 0.035212399)
            (yy, 96.82722)  +- (0.045398952, 0.045398952)
            (zz, 97.75243)  +- (0.034266698, 0.034266698)
            (ll, 96.72982)  +- (0.043016218, 0.043016218)
        };

        \legend{xxx, xxx, xxx, xxx}
    \end{axis}
\end{tikzpicture}
\end{document}

Related Solutions

[Tex/LaTex] plotting two time series with bounds

This happens because PGFPlots only uses one "stack" per axis: You're stacking the second confidence interval on top of the first. The easiest way to fix this is probably to use the approach described in "Is there an easy way of using line thickness as error indicator in a plot?": After plotting the first confidence interval, stack the upper bound on top again, using stack dir=minus. That way, the stack will be reset to zero, and you can draw the second confidence interval in the same fashion as the first:

\documentclass{standalone}
\usepackage{pgfplots, tikz}

\usepackage{pgfplotstable}

\pgfplotstableread{
temps   y_h y_h__inf    y_h__sup    y_f y_f__inf    y_f__sup    

1   0.237340    0.135170    0.339511    0.237653    0.135482    0.339823    
2   0.561320    0.422007    0.700633    0.165871    0.026558    0.305184    
3   0.694760    0.534205    0.855314    0.074856    -0.085698   0.235411    
4   0.728306    0.560179    0.896432    0.003361    -0.164765   0.171487    
5   0.711710    0.544944    0.878477    -0.044582   -0.211349   0.122184    
6   0.671241    0.511191    0.831291    -0.073347   -0.233397   0.086703    
7   0.621177    0.471219    0.771135    -0.088418   -0.238376   0.061540    
8   0.569354    0.431826    0.706882    -0.094382   -0.231910   0.043146    
9   0.519973    0.396571    0.643376    -0.094619   -0.218022   0.028783    
10  0.475121    0.366990    0.583251    -0.091467   -0.199598   0.016664    
}{\table}

\begin{document}
\begin{tikzpicture}

    \begin{axis}
    % y_h confidence interval
    \addplot [stack plots=y, fill=none, draw=none, forget plot]   table [x=temps, y=y_h__inf]   {\table} \closedcycle;
    \addplot [stack plots=y, fill=gray!50, opacity=0.4, draw opacity=0, area legend]   table [x=temps, y expr=\thisrow{y_h__sup}-\thisrow{y_h__inf}]   {\table} \closedcycle;
    % subtract the upper bound so our stack is back at zero
    \addplot [stack plots=y, stack dir=minus, forget plot, draw=none] table [x=temps, y=y_h__sup] {\table};

    % y_f confidence interval
    \addplot [stack plots=y, fill=none, draw=none, forget plot]   table [x=temps, y=y_f__inf]   {\table} \closedcycle;
    \addplot [stack plots=y, fill=gray!50, opacity=0.4, draw opacity=0, area legend]   table [x=temps, y expr=\thisrow{y_f__sup}-\thisrow{y_f__inf}]   {\table} \closedcycle;

    % the line plots (y_h and y_f)    
    \addplot [stack plots=false, very thick,smooth,blue]  table [x=temps, y=y_h]   {\table};
    \addplot [stack plots=false, very thick,smooth,blue]  table [x=temps, y=y_f]   {\table};
    \end{axis}

\end{tikzpicture}
\end{document}

[Tex/LaTex] How to uniformly change bar thickness, box width and add error bars

Since you didn't provide any data for the error bars -- but you already found a solution yourself anyway -- here is a solution for the remaining 2 problems 1 and two.

For more details please have a look at the comments in the code.

% used PGFPlots v1.14
%\documentclass[border=5pt]{standalone}
\documentclass[DIV=12]{scrartcl}
\usepackage{pgfplots}
\usepackage{pgfplotstable}
\usetikzlibrary{
    calc,       % <-- to calculate the legend position
    pgfplots.groupplots,
}
\pgfplotsset{
    % use this `compat' level or higher to be able to provide (relative) axis
    % units to `bar width' and `bar shift'
    compat=1.7,
    % define a style wich stores the stuff the both `groupplot' environments
    % have in common
    % (unfortunately there seems to be a bug that prevents also collecting
    %  the stuff from `group style' in another style, see
    %      <https://sourceforge.net/p/pgfplots/bugs/137/>
    %  that is why we have to provide it in both cases separately)
    my axis style/.style={
        % to easier estimate the `width' scale only the axis (box without the
        % ticks and labels)
        scale only axis,
        % now play around with the value so that it fits the `\textwidth'
        % (but of course it has to be smaller than 0.25, because there are
        %  4 plots + 2x ticks + 2x axis labels + 3x axis seperation
        width=0.17\textwidth,
        height=0.4\textwidth,
        enlarge x limits={abs=0.5},
        ybar,
        % to make the individual bars independent of the `width' of the
        % surrounding axis give a `bar width' in axis units
        /pgf/bar width=\BarWidth,
    },
    water/.style={
        fill=cyan,
        draw=cyan!50!black,
    },
    co2/.style={
        fill=orange,
        draw=orange!50!black,
    },
}
\pgfplotstableread{
Criterion   Wasserverbrauch     {CO$_2$-Emission}
Komp        8                   2349
Komp+PV     8                   452
Sorp        14                  1006
ABC         230                 1006
}\Rambo

\pgfplotstableread{
Criterion   Wasserverbrauch     {CO$_2$-Emission}
Komp        100                 10220
Komp+PV     36                  5891
Sorp        85                  3160
ABC         45                  3400
}\Godfather

\pgfplotstableread{
Criterion   Wasserverbrauch     {CO$_2$-Emission}
Komp        230                 25657
Komp+PV     97                  18306
Sorp        184                 7461
ABC         240                 7461
}\Jedi

\pgfplotstableread{
Criterion   Wasserverbrauch     {CO$_2$-Emission}
Komp        230                 25657
Komp+PV     97                  18306
Sorp        184                 7461
ABC         240                 7461
}\LordVader

\begin{document}
\hrulefill

\begin{tikzpicture}
        % define the values for the horizontal separation of the different axis
        % environments, as well as the width and shift of the bars
        \pgfmathsetlengthmacro{\HorSep}{5mm}
        \pgfmathsetmacro{\BarWidth}{0.3}
        \pgfmathsetmacro{\BarShift}{\BarWidth/2+0.05}
    \begin{groupplot}[
        my axis style,
        %
        group style={
            group name=plots,
            columns=4,
            horizontal sep=\HorSep,
            x descriptions at=edge bottom,
            y descriptions at=edge left,
        },
        ylabel={[ML]},
        ylabel style=cyan!50!black,
        yticklabel style=cyan!50!black,
        ymin=0,
        ymax=270,
        xticklabels from table={\Rambo}{Criterion},
        x tick label style={rotate=90,anchor=east},
        xtick=data,
        xtick pos=left,
        legend columns=2,
        %
%        % this doesn't seem to work ...
%        every axis plot no 0/.append style={water},
%        % ... and we cannot use this style here, because that would also
%        % overwrite the `\addlegendimage' style
%        % so we have to apply the style to each `\addplot' manually
%        every axis plot post/.style={water},
        table/x expr=\coordindex,
        table/y index=1,
        %
        /pgf/bar shift=-\BarShift,
    ]
    \nextgroupplot[
        xlabel=Rambo,
        legend to name=grouplegend,
        legend entries={
            Wasserverbrauch,
            CO$_2$-Emission,
        },
    ]
        \addplot [water] table {\Rambo};
        \addlegendimage{co2,ybar legend}

    \nextgroupplot[xlabel=Godfather]
        \addplot [water] table {\Godfather};

    \nextgroupplot[xlabel=Jedi]
        \addplot [water] table {\Jedi};

    \nextgroupplot[xlabel=LordVader]
        \addplot [water] table {\LordVader};
    \end{groupplot}

    \begin{groupplot}[
        my axis style,
        %
        group style={
            columns=4,
            horizontal sep=\HorSep,
            y descriptions at=edge right,
        },
        ymin=0,
        ymax=2.7e4,
        xtick=\empty,
        axis line style=transparent,
        ylabel={[kg CO$_2$ per year]},
        yticklabel style=orange!75!black,
        ylabel style=orange!75!black,
        scaled y ticks=false,
        %
        every axis plot post/.style={co2},
        table/x expr=\coordindex,
        table/y index=2,
        %
        /pgf/bar shift=\BarShift,
    ]
    \nextgroupplot
        \addplot table {\Rambo};

    \nextgroupplot
        \addplot table {\Godfather};

    \nextgroupplot
        \addplot table {\LordVader};

    \nextgroupplot[scaled y ticks=true]
        \addplot table {\Jedi};
    \end{groupplot}

    \node [anchor=south, yshift=0mm] at
        ($ (plots c1r1.north west)!0.5!(plots c4r1.north east) $)
            {\ref{grouplegend}};
\end{tikzpicture}
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] plotting two time series with bounds

[Tex/LaTex] How to uniformly change bar thickness, box width and add error bars

Related Question