# Create a sideways filled in bar plot

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William Garrett on 4 May 2020
Answered: Star Strider on 4 May 2020
I want to create a figure that looks alike the attached, where I have a bar and when the value is 1, it is filled in blue, and when the value is 0 it has no colour.
The x axis must be datetime values and the bars must have filled colour, i.e. they cannot be outlines
Is this possible to do on MATLAB?

David Hill on 4 May 2020
Yes, see bar() function
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David Hill on 4 May 2020
Look at barh() function and see if you can figure it out.

Star Strider on 4 May 2020
It would help to have an example of your data.
That aside, the sort of plot you want to do is straightforward.
Try this:
v = sort(rand(1,20)); % Create Vecttor Of Independent Variable Values
figure
yv = [0 0 1 1];
hold on
for k = 1:2:numel(v)-1
patch([v(k:k+1) fliplr(v(k:k+1))], yv, 'b')
end
hold off
It would likely be relatively straightforward to adapt this to a datetime vector.