How to get rid of the date on a plot over time?

Question

Michael Steinbuechler 2018-5-17

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/401152-how-to-get-rid-of-the-date-on-a-plot-over-time

评论： dpb 2018-5-17

采纳的回答： dpb

在 MATLAB Online 中打开

Hello Matlab-Pros,

I want to plot values over time, but I matlab always adds the day to the axis description.

How can I get rid of this date?

That's my (very easy) code:

x = (linspace(StartT,EndT,IndexFinalDepth));
    x.Format = 'HH:mm:ss';
    y = (-1)*(RawData(1:IndexFinalDepth,1));
      TimePlot = subplot(ax1);
            plot(x,y)
      ylim ([(-maxDepth-2) 0]);
      xlim auto
      ylabel('Elevation [m]','FontSize',7)
      set(gca,'fontsize',7)
      TimePlot.Title.String = 'Depth Profile';
      TimePlot.Title.FontWeight = 'normal';
      TimePlot.Title.FontSize = 7;

Thanks in advance!

Mike

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

dpb 2018-5-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/401152-how-to-get-rid-of-the-date-on-a-plot-over-time#answer_320628

在 MATLAB Online 中打开

Can't by just using the format string for the datetime ruler object; it will put whatever is needed to make the date labels unique. You can, however, write the XTickLabel property and that overrides the XTick display...

TimePlot = subplot(ax1);
plot(x,y)
x.Format='HH:mm';
TimePlot.XTickLabel=cellstr(x);
....
>>

2 个评论
显示无隐藏无

Michael Steinbuechler 2018-5-17

Works like a charm! Thank you very much.

I just realized that changing the date format the way I did it before, doesn't affect the outcome at all.

dpb 2018-5-17

That's correct; that only affects the display of the object; you can change the format of the axis time ruler with the xtickformat function or the '.TickLabelFormat' property, but the datetime ruler has a mind of its own regarding that it thinks it must somehow make the times shown unambiguous despite what you tell it you want.

Only writing specifically the text in the label property that isn't tied to the tick value overrides that "feature". I had fairly long conversation with a TMW staffer a few weeks ago on the subject and suggested that be made user-settable (whether will take the advice is anybody's guess :) ).

请先登录，再进行评论。