Bar plot with lower values not fixed

I'd like to make a plot for 9 item, each having 2 bars spaced close together, showing two related values. I want to have the bottoms of each bar not fixed at 0 or at some fixed offset. i want to show the range of values for each object in other words, max and min. no outliers or whiskers or percentiles. Kind of like as shown in the picture, but with EACH of the bottoms of the bars specifiable in Y value, not fixed..

 Accepted Answer

Use the patch function in a loop —
x = (1 : 9).'; % Assume Column Vectors
xd = repmat([-0.1 0.1], numel(x), 1) + x
xd = 9×2
0.9000 1.1000 1.9000 2.1000 2.9000 3.1000 3.9000 4.1000 4.9000 5.1000 5.9000 6.1000 6.9000 7.1000 7.9000 8.1000 8.9000 9.1000
xos = 0.125; % Spatial Separation ('x')
y = rand(numel(x),2) % Y-Values
y = 9×2
0.4302 0.6695 0.0597 0.3789 0.8846 0.3307 0.5977 0.8536 0.3026 0.2960 0.9167 0.9977 0.7873 0.5228 0.9008 0.2920 0.9802 0.0182
VarNames = ["A","B","C","D","E","F","G","H","I"];
figure
hold on
for k = 1:numel(x)
patch([xd(k,:) flip(xd(k,:))]-xos, [-1 -1 1 1]*y(k,1)/2, 'r')
patch([xd(k,:) flip(xd(k,:))]+xos, [-1 -1 1 1]*y(k,2)/2, 'b')
end
hold off
xticks(x)
xticklabels(VarNames)
This sets the bars to be symmetric about the midpoiint. It should not be difficult to adjust the code to use other options, since that simply requires changing the y-argument to the patch calls.
.

4 Comments

Thanks, yes that does work. Someone else suggested using line() with the linewidth set very large.
As always, my pleasure!
I’ve used both patch and line for these sorts of problems. I seemed to me that patch was more appropriate here.
Yes, i suppose the patch would be more flexible.
It has its advantages, certainly.

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More Answers (1)

This exercise can be done using bar(), xticks, xticklabels, xtickangle commands:
G = randi([0, 15], 9,2);
Names = {'A(x)'; 'AB(y)'; 'ABC(y)'; 'ABCD(x1)'; 'ABBA(y1)'; 'BAC(z1)'; 'DABA(x,y)'; 'DABC1(w)'; 'ABCD13(u)'};
bar(G), grid on
xticks(1:9)
xticklabels(Names)
xtickangle(45)
ylim([0, 16])
legend('ver: One', 'ver: Two')

1 Comment

Yeah, that is what I already had. The idea was to be able to also specify the minimum values, not all at 0.

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