How can I display the date on a plot?

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Agustin
Agustin 2017-9-13
评论： Agustin 2017-9-14
Hi! I'm working on a plot to show the displacements of a point at different times and I got the following:
I got the results I wanted on the plot but instead of showing the time in julian time, I want to show the date. I tried converting the time vector using the datestr command but it says that there is a subscript mismatch. Can someone help me with this? Thank you.

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Walter Roberson
Walter Roberson 2017-9-13
If you have roughly R2015b or later (I would need to recheck the exact release) then where you have roughly
plot(Time, Displacement)
change that to
TimeDT = datetime(Time, 'ConvertFrom', 'juliandate', 'Format', 'yyyy-MM-dd'); %or as appropriate for format you want displayed
plot(TimeDT, Displacement)
The ability to use datetime objects as the "x" values did not start with R2014b with the rest of the Handle Graphics 2 (HG2) graphics system, so if you are in the R2014b to R2015b range possibly it was not yet available.
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Walter Roberson
Walter Roberson 2017-9-14
You wrote, "instead of showing the time in julian time", so I took your word that what you have is indeed julian dates. However your values are instead consistent with datenum instead of julian dates. So in the code I posted replace 'juliandate' with 'datenum'

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