How to post the values in the middle of a stacked bar plot?

Hi!

I'm new to MatLab and I want to make a plot with the values present in the middle of the bars.

x = [0 0 20 52.5 27.5; 5 10 50 20 15; 2.5 5 25 47.5 20; 5 5 42.5 45 2.5; 2.5 27.5 40 27.5 2.5; 2.5 12.5 65 20 0]

bar (x, 'stacked')

[dpb]

Dunno what you mean??? Going to have to do more than that to explain...you know what you want, we only know what you tell us.

Answer 1

[Voss]

x = [0 0 20 52.5 27.5; 5 10 50 20 15; 2.5 5 25 47.5 20; 5 5 42.5 45 2.5; 2.5 27.5 40 27.5 2.5; 2.5 12.5 65 20 0]

x = 6×5

0 0 20.0000 52.5000 27.5000 5.0000 10.0000 50.0000 20.0000 15.0000 2.5000 5.0000 25.0000 47.5000 20.0000 5.0000 5.0000 42.5000 45.0000 2.5000 2.5000 27.5000 40.0000 27.5000 2.5000 2.5000 12.5000 65.0000 20.0000 0

[m,n] = size(x);
xx = (1:m).'+zeros(1,n); % x-coordinates of texts, for both methods below

One way, using the properties of the bar objects created with bar:

h = bar (x, 'stacked');
ydata = cell2mat(get(h,'YData'));
yendpoints = cell2mat(get(h,'YEndPoints'));
yy = (yendpoints-ydata/2).'; % y-coordinates of texts
text(xx(:),yy(:),sprintfc('%.1f',x),'HorizontalAlignment','center')

Another way, using just the data x:

figure
bar (x, 'stacked');
yy = cumsum([zeros(m,1) x],2);
yy = (yy(:,1:end-1)+yy(:,2:end))/2; % y-coordinates of texts
text(xx(:),yy(:),sprintfc('%.1f',x),'HorizontalAlignment','center')

Notice that bars with zero height are labeled '0.0'. You can omit the labels for zero-height bars:

figure
bar (x, 'stacked');
% calculate yy using either of the above methods
idx = x ~= 0;
text(xx(idx),yy(idx),sprintfc('%.1f',x(idx)),'HorizontalAlignment','center')

[Jolien de Boer]

Thank you so much!

[Voss]

You're welcome!