making `errorbar` work with `datetime`

I would like to plot errorbar with datetime on x-axis

x = datetime(['21-Aug-2019'; '22-Aug-2019'; '23-Aug-2019']);
y = [100; 110; 130];
figure
plot(x,y, '.')
hold on
errorbar(x, y, 20)

The final error produces this error

Error using errorbar (line 76)

Input arguments must be numeric or objects which can be converted to double.

Even the following produces error

errorbar(datenum(x), y, 20*ones(size(y)))

I am using R2016b

Answer 1

[Sai Sri Pathuri]

The errorbar function does not accept datetime object as an input argument. Try to use datenum function to declare the input and note that the third argument must have same size as y.

When you are using the following function,

errorbar(datenum(x),y,20*ones(size(y))); 

Try to use the datenum(x) instead of x in plot to avoid the error.

plot(datenum(x), y,'.');

Answer 2

[Lei Hou]

Sai is correct that errorbar doesn't yet support datetimes. I've made an enhancement request, and hopefully errorbar will be updated in a not-too-distant upcoming release.