Display values barh, YEndPoints/XEndPoints does not work

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Anil Dogan
Anil Dogan on 27 Jun 2022
Commented: Voss on 28 Jun 2022
Hello,
I have created a bar chart. I would like to display the values. The example from the help center does not work (https://de.mathworks.com/help/matlab/ref/barh.html). I get the error: Unrecognized method, property, or field 'YEndPoints' for class 'matlab.graphics.chart.primitive.Bar'. I am using Matlab R2019a.
Below is my example:
fig1=figure(1);
X=[6.5,7.5,8.5,9.5,10.5,11.5,12.5,13.5,14.5,15.5,16.5,17.5,18.5];
Y = [
45 72 36
36 7 24
34 35 37
107 86 70
86 61 105
108 71 149
92 64 107
69 57 87
47 47 75
48 51 69
38 33 82
65 33 91
28 10 35
];
fig2=figure(2);
b=barh(X,Y);
grid on
set(gca,'YDir','reverse');
set(gca,'XLim', [0 175]);
set(gca,'XTick', 0:25:175);
set(gca,'YLim',[6 19]);
set(gca,'YTick',6:1:19);
yticklabels({'6','7','8','9','10','11','12','13','14','15','16','17','18','18.3'})
% Does not work:
% xtips1 = b(1).YEndPoints + 0.3;
% ytips1 = b(1).XEndPoints;
% labels1 = string(b(1).YData);
% text(xtips1,ytips1,labels1,'VerticalAlignment','middle')
  1 Comment
dpb
dpb on 27 Jun 2022
That was during the period TMW hid the useful properties of bar positions from which could derive the bar midpoints and before the X/YEndpoints properties were introduced.
You'll have to compute the positions yourself; there's a prior Answer I posted several times that shows the workaround; unfortunately, I didn't save a link to it and I have a meeting in town I've got to go get ready for now...
It's a pain if you can't upgrade although it is doable and, once see it through the use of an undocumented property, the code isn't hard, but have to know/see the trick...

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Accepted Answer

Voss
Voss on 27 Jun 2022
Maybe you can use X/YData instead of X/YEndPoints. Here it is with labels on all bars; you can adapt it to label only the first bar if that's what you want to do.
fig1=figure(1);
X=[6.5,7.5,8.5,9.5,10.5,11.5,12.5,13.5,14.5,15.5,16.5,17.5,18.5];
Y = [
45 72 36
36 7 24
34 35 37
107 86 70
86 61 105
108 71 149
92 64 107
69 57 87
47 47 75
48 51 69
38 33 82
65 33 91
28 10 35
];
fig2=figure(2);
b=barh(X,Y);
grid on
set(gca,'YDir','reverse');
set(gca,'XLim', [0 175]);
set(gca,'XTick', 0:25:175);
set(gca,'YLim',[6 19]);
set(gca,'YTick',6:1:19);
yticklabels({'6','7','8','9','10','11','12','13','14','15','16','17','18','18.3'})
Nb = numel(b);
dy = (-(Nb-1):2:(Nb-1))/(2*Nb+3);
for ii = 1:Nb
xtips1 = b(ii).YData + 0.3;
ytips1 = b(ii).XData + dy(ii);
labels1 = string(b(ii).YData);
text(xtips1,ytips1,labels1,'VerticalAlignment','middle')
end

More Answers (1)

dpb
dpb on 27 Jun 2022
One of the previous postings -- same idea but uses the internal Offset values from the bar handles...
This was for bar so will need to change the orientation/alignment for x and y directions to match for barh but otherwise should work...

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