[Tex/LaTex] Date plot using pgfplots with odd tick label

dateplotlabelspgfplotsticks

How do I make the time label in the following image appear as "10:00" (i.e. 10 o'clock) rather than the unexpected and unwelcome "09:60"?

enter image description here

Here's the code that I am using:

\documentclass{beamer}
\usepackage{pgfplots}
\usepgfplotslibrary{dateplot} 


\begin{document} 

\frame{
\begin{tikzpicture}
\begin{axis}[
mark =none,
xmin=2009-08-18 08:30,
xmax=2009-08-18 10:29,
ymin=0, 
ymax=189,
grid=both,
axis x line=bottom,
axis y line=left,
date coordinates in=x,
minor x tick num=5,
minor y tick num=4,
xtick={2009-08-18 09:00,2009-08-18 10:00},
ytick={0,50,100,150},
xticklabel= \hour:\minute,
]
\addplot [thick,blue]coordinates {
(2009-08-18 08:30, 000)
(2009-08-18 09:00, 060)
(2009-08-18 09:20, 060)
(2009-08-18 10:00, 100)
(2009-08-18 10:10, 060)
} node [below] {Train A};

\end{axis}
\end{tikzpicture}
}

\end{document}

Supplementary question:

In the image above, why don't the minor tick lines appear before "09:00" but only after?

Best Answer

This is a known bug that's fixed in the development version of PGFplots. You can include the bugfix without upgrading the package by defining the patched function in your preamble.

I'm not sure what's going on with the grid lines, you may want to file a bug report about that. You can work around it by using the following settings:

minor x tick num=11,
xtick={2009-08-18 08:00,2009-08-18 10:00},
extra x ticks=2009-08-18 09:00

Here's the complete code:

\documentclass{article}
\usepackage{pgfplots}
\usepgfplotslibrary{dateplot} 

\makeatletter
\def\pgfplotslibdateplot@number@to@julian@and@time#1.#2\julianto#3\hourto#4\minuteto#5{%
    #3=#1
    \pgf@xa=0.#2pt
    \multiply\pgf@xa by24
    \afterassignment\pgfplots@gobble@until@relax
    \c@pgf@countb=\the\pgf@xa\relax
    \edef#4{\the\c@pgf@countb}%
    \advance\pgf@xa by-#4pt
    \multiply\pgf@xa by60
    \afterassignment\pgfplots@gobble@until@relax
    \c@pgf@countb=\the\pgf@xa\relax
    % round minutes (we may lose precision here)
    \advance\pgf@xa by-\the\c@pgf@countb pt
    \ifdim\pgf@xa>0.5pt 
        \advance\c@pgf@countb by1
        \ifnum\c@pgf@countb=60
            \c@pgf@countb=#4 %
            \advance\c@pgf@countb by1
            \edef#4{\the\c@pgf@countb}%
            \c@pgf@countb=0
        \fi
    \fi
    \edef#5{\the\c@pgf@countb}%
}
\makeatother


\begin{document} 

\frame{
\begin{tikzpicture}
\begin{axis}[
mark =none,
date ZERO=2009-08-18 08:30,
xmin=2009-08-18 08:30,
xmax=2009-08-18 10:29,
ymin=0, 
ymax=189,
grid=both,
axis x line=bottom,
axis y line=left,
date coordinates in=x,
minor x tick num=11,
minor y tick num=4,
xtick={2009-08-18 08:00,2009-08-18 10:00},
extra x ticks=2009-08-18 09:00,
ytick={0,50,100,150},
xticklabel= \hour:\minute,
]
\addplot [thick,blue]coordinates {
(2009-08-18 08:30, 000)
(2009-08-18 09:00, 060)
(2009-08-18 09:20, 060)
(2009-08-18 10:00, 100)
(2009-08-18 10:10, 060)
} node [below] {Train A};

\end{axis}
\end{tikzpicture}
}

\end{document}

pgfplots dateplot

Related Solutions

[Tex/LaTex] individual tick label style with pgfplots

Since you only need two different styles (as opposed to styles that differ for every label), you can use extra x ticks for the negative labels:

\documentclass{report}
\usepackage{pgf}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\pgfplotsset{plot coordinates/math parser=false}
\begin{document}
\begin{tikzpicture}
\begin{axis}[%
axis lines*=middle,
width=10cm,
height=10cm,
scale only axis,
xmin=-5,
xmax=5,
xtick={2,  4},
xticklabels={$2\pi$, $4\pi$},
extra x ticks={-4, -2},
extra x tick labels={$-2\pi$, $-4\pi$},
extra x tick style={
    xticklabel style={yshift=0.5ex, anchor=south}
},
ymin=-1.4,
ymax=1.4,
ytick={-1,  0,  1}]
\end{axis}
\end{tikzpicture}%
\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] individual tick label style with pgfplots

[Tex/LaTex] pgfplots: percentage in matrix plot

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