How can I get MATLAB to plot a date on the x-axis?
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I have a dataset with column1 = date and column2 = data. The problem is that my date is in yyyymmdd format. How can I get MATLAB to plot the date correctly in the x-axis?
Thank you in advance! :)
2 Comments
Accepted Answer
dpb
on 21 Oct 2013
First convert the text string date format to Matlab serial dates --
doc datenum
Then plot with that value as the x-axis value and format the dates as desired via
doc datetick
dn=datenum(data(:,1),'yyyymmdd');
plot(dn,data(:,2))
datetick('x','keepticks','keeplimits')
Salt to suit...
2 Comments
dpb
on 28 Jan 2020
This answer is now out of date...use the new(ish) datetime class instead of datenum
More Answers (2)
Dainty Daisy Calgas
on 3 Dec 2017
Hello, how could I plot a quarterly data with column1, written as Q1:1991 up to Q4:2016, then my column2 is my data., please I really need help, it was in the excel.
1 Comment
dpb
on 3 Dec 2017
Better form would be to create a new question, but it is at least related so I'll consider it here as "close enough"... :)
Problem first is we need to know how the date data are actually stored and imported. Since the date of the original Q, TMW has introduced the datetime class/object and improved graphics routines to be datetime aware so things are different now than then...
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