Plot time on x-axis with certain intervals

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Vlatko Milic
Vlatko Milic 2021년 11월 18일
댓글: Star Strider 2021년 11월 21일
Hi Matlab friends,
I want to plot a data set in which I have data of one minute intervals. However, the data set is big and I would only like to plot the the year/month/day quarterly. As it is, the time steps are in 250000 x 1 cell. I can convert them to categorical arrays but do not know how to proceed with the plotting.
Kind regards

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Star Strider
Star Strider 2021년 11월 18일
Try something like this —
tdr = duration(minutes(1:250000));
tdt = datetime([2021 01 01])+tdr;
% Q1 = t(1435:1445)
y = sin(2*pi*minutes(tdr)*10/minutes(tdr(end)));
figure
plot(tdt, y)
grid
xticks(tdt(1:90*1440:end))
xtickformat('QQQ')
Make necessary changes to get the desired result.
.
  댓글 수: 8
Vlatko Milic
Vlatko Milic 2021년 11월 21일
thank you, i finally got it to work. Had some problems with the column in which the dates where.
Star Strider
Star Strider 2021년 11월 21일
As always, my pleasure!
.

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