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How do i get Char into Double

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Jelthe 2016 年 3 月 31 日
コメント済み: Image Analyst 2016 年 3 月 31 日
Does anyone know how i get timeinformation saved as a char into a double? I want to plot something over a time (HH:MM:SS) i got the information as a Workspace variable but as a class. I need it as an double to plot it.

回答 (2 件)

Image Analyst
Image Analyst 2016 年 3 月 31 日
Use datenum(). From the help:
format long
t = [datetime('now');datetime('tomorrow')]
DateNumber = datenum(t)
t =
07-Jan-2016 15:42:14
08-Jan-2016 00:00:00
DateNumber =
1.0e+05 *
  2 件のコメント
Image Analyst
Image Analyst 2016 年 3 月 31 日
You can make the tick marks whatever list of strings you want:
ax = gca;
ax.XTickLabel = yourCellArrayOfTimeStrings;
Example from the help:
ax.XTickLabel = {'-3\pi','-2\pi','-\pi','0','\pi','2\pi','3\pi'};


Ilham Hardy
Ilham Hardy 2016 年 3 月 31 日
Maybe this will help? str2num

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