1

Assumed we have this Minimum Working Example (MWE) to display a dateplot with two completely identical x axis, but with different xtick positions:

\documentclass{standalone}
\usepackage{pgfplots}
\usepgfplotslibrary{dateplot}%
\pgfplotsset{compat=1.8}

\begin{document}
\begin{tikzpicture}
\begin{axis}[
            axis x line*        = top,
            axis y line*        = left,
            date coordinates in = x,
            xtick               = {2018-11-15,2018-12-15,2019-01-15,2019-02-15,2019-03-15,2019-04-15,2019-05-15},
            xticklabels         = {Nov,Dec,Jan,Feb,March,Apr,May},
            date ZERO           = 2018-11-01;
            xmin                = 2018-11-01;
            xmax                = 2019-05-01;
            ]
\end{axis}
\begin{axis}[
            axis x line*        = bottom,
            axis y line*        = right,
            date coordinates in = x,
            xtick               = {2018-11-01,2018-12-01,2019-01-01,2019-02-01,2019-03-01,2019-04-01,2019-05-01},
            xticklabels         = {Nov,Dec,Jan,Feb,March,Apr,May},
            date ZERO           = 2018-11-01;
            xmin                = 2018-11-01;
            xmax                = 2019-05-01;
            ]
\end{axis}%
\end{tikzpicture}
\end{document}

Screenshot of the result:

Screenshot of the result

Description of the issue:

  • Despite of setting all xticks manually with xtick = {2019-01-15,...}, they falsely appear on the completely same position like xticks at very different dates of the second x axis, e.g. xtick = {2019-01-01,...}.
  • Furthermore, the month Nov is completely missing (thanks marmot!)

Question:

How can I align the xticks precisely without failure shifts in x direction? While the upper x axis should display the mean days of the month (e.g. 2019-01-15), the lower x axis should display the start dates of the month (e.g. 2019-01-01).

Improve this question
6
  • @marmot: The very first time that even you don't understand confusing LaTeX-behavior? :-) – Dave May 10 '19 at 15:29
  • I guess the issue is simply that you use semicolons instead of commas in date ZERO = 2018-11-01 00:00:00; (should be date ZERO = 2018-11-01 00:00:00,), xmin and xmax. – user121799 May 10 '19 at 15:37
  • @marmot: Great idea! Unfortunately the values of both axis move simultaneously when replacing the semicolons with commas. – Dave May 10 '19 at 15:41
  • Furthermore, the november is still missing. :-) – Dave May 10 '19 at 15:41
  • I agree. So I think there should be no semicolons but the issue you describe is then still there. (will decouple now...) – user121799 May 10 '19 at 15:46
1

This might be a bug, but as mentioned in a comment if you plot something the axis limits work as expected. So if you, in addition to fixing the semicolon-issue mentioned by marmot, add \addplot [mark=none] coordinates {(2019-1-1,0)}; in each axis, the output is this:

enter image description here

\documentclass{standalone}
\usepackage{pgfplots}
\usepgfplotslibrary{dateplot}%
\pgfplotsset{compat=1.8}

\begin{document}
\begin{tikzpicture}
\begin{axis}[
            axis x line*        = top,
            axis y line*        = left,
            date coordinates in = x,
            xtick               = {2018-11-15,2018-12-15,2019-01-15,2019-02-15,2019-03-15,2019-04-15,2019-05-15},
            xticklabels         = {Nov,Dec,Jan,Feb,March,Apr,May},
            date ZERO           = 2018-11-01,
            xmin                = 2018-11-01,
            xmax                = 2019-05-01
            ]
\addplot [mark=none] coordinates {(2019-1-1,0)};
\end{axis}
\begin{axis}[
            axis x line*        = bottom,
            axis y line*        = right,
            date coordinates in = x,
            xtick               = {2018-11-01,2018-12-01,2019-01-01,2019-02-01,2019-03-01,2019-04-01,2019-05-01},
            xticklabels         = {Nov,Dec,Jan,Feb,March,Apr,May},
            date ZERO           = 2018-11-01,
            xmin                = 2018-11-01,
            xmax                = 2019-05-01
            ]
\addplot [mark=none] coordinates {(2019-1-1,0)};
\end{axis}%
\end{tikzpicture}
\end{document}
Improve this answer

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.