Hiding 0 values from nodes within a bar graph

nodes-near-coordspgfplotstikz-pgf

Is it possible to hide the 0 values from appearing when I have node near coords active? even better if I could hide the bar graphs for those specific 0 values.

I tried using nodes near coords=y filter/.expression={y==0 ? nan : y}, however, it hid the x axis labels.

\documentclass{article}
\usepackage{tikz}
\usepackage{pgfplots}
\usepackage{siunitx}
\pgfplotsset{width=7cm,compat=1.3}
\hyphenation{}

\begin{document}
\begin{tikzpicture}
\begin{axis}[
    legend style={font=\tiny},
    ybar=1pt,
    bar width =2pt,
    ymin=0,ymax=200,
    enlarge y limits={upper=0.15},
    legend image code/.code={\draw[#1, draw=none] (0cm,-0.1cm) rectangle (0.3cm,0.1cm);
                },
    ymajorgrids = true,
    legend style={at={(-0.00000009,0.845)},
                   anchor=west,legend columns=1},
    ylabel={Energy Consumption (Watts)},
    symbolic x coords={R2G,Gaussian,Box,Sobel,Gsn Pyd,Extrema,Orientation,Descriptor,Edge Total,SIFT Total},
    xtick=data,
    nodes near coords,
    nodes near coords style={font=\tiny, anchor=west,rotate=90,inner
    xsep=0.5pt},
    x tick label style = {font=\small, rotate=45, anchor=east},
    ]

\addplot coordinates {(R2G,54) (Gaussian,68)  (Box,80) (Sobel,95) (Gsn Pyd,0)(Extrema,0) (Orientation,0) (Descriptor,0) (Edge Total, 105)  (SIFT Total, 125)};%CPU

\addplot [fill=teal!]  coordinates {(R2G,80) (Gaussian,105)  (Box,111) (Sobel,120) (Gsn Pyd,130)(Extrema,50) (Orientation,47) (Descriptor,35) (Edge Total, 132) (SIFT Total, 150)  };%GPU

\addplot coordinates {(R2G,11) (Gaussian,32)  (Box,32) (Sobel,20) (Gsn Pyd,26)(Extrema,12) (Orientation,10) (Descriptor,5) (Edge Total, 43) (SIFT Total, 52) };%FPGA

\addplot coordinates {(R2G,15) (Gaussian,38)  (Box,39) (Sobel,32) (Gsn Pyd,28) (Extrema,18) (Orientation,15) (Descriptor,9) (Edge Total, 52) (SIFT Total, 72) };%HLS

\legend{CPU,GPU,FPGA,HLS}
\end{axis}
\end{tikzpicture}
\end{document}

Best Answer

Using y filter/.expression={y==0 ? nan : y} I would suggest something like this: Just move the GPU plot in front of the CPU plot and the labels remain.

\documentclass{article}
\usepackage{tikz}
\usepackage{pgfplots}
\usepackage{siunitx}
\pgfplotsset{width=7cm,compat=1.3}
\hyphenation{}

\begin{document}
\begin{tikzpicture}
\begin{axis}[
    legend style={font=\tiny},
    ybar=1pt,
    bar width =2pt,
    ymin=0,ymax=200,
    y filter/.expression={y==0 ? nan : y},
    enlarge y limits={upper=0.15},
    legend image code/.code={\draw[#1, draw=none] (0cm,-0.1cm) rectangle (0.3cm,0.1cm);
                },
    ymajorgrids = true,
    legend style={at={(-0.00000009,0.845)},
                   anchor=west,legend columns=1},
    ylabel={Energy Consumption (Watts)},
    symbolic x coords={R2G,Gaussian,Box,Sobel,Gsn Pyd,Extrema,Orientation,Descriptor,Edge Total,SIFT Total},
    xtick=data,
    nodes near coords,
    nodes near coords style={font=\tiny, anchor=west,rotate=90,inner
    xsep=0.5pt},
    x tick label style = {font=\small, rotate=45, anchor=east},
    ]
\addplot [fill=teal!] coordinates {(R2G,80) (Gaussian,105)  (Box,111) (Sobel,120) (Gsn Pyd,130)(Extrema,50) (Orientation,47) (Descriptor,35) (Edge Total, 132) (SIFT Total, 150)  };%GPU

\addplot coordinates {(R2G,54) (Gaussian,68)  (Box,80) (Sobel,95) (Gsn Pyd,0)(Extrema,0) (Orientation,0) (Descriptor,0) (Edge Total, 105)  (SIFT Total, 125)};%CPU

\addplot coordinates {(R2G,11) (Gaussian,32)  (Box,32) (Sobel,20) (Gsn Pyd,26)(Extrema,12) (Orientation,10) (Descriptor,5) (Edge Total, 43) (SIFT Total, 52) };%FPGA

\addplot coordinates {(R2G,15) (Gaussian,38)  (Box,39) (Sobel,32) (Gsn Pyd,28) (Extrema,18) (Orientation,15) (Descriptor,9) (Edge Total, 52) (SIFT Total, 72) };%HLS

\legend{GPU,CPU,FPGA,HLS}
\end{axis}
\end{tikzpicture}
\end{document}

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

Related Question