Labels above bar-plot

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stelios loizidis
stelios loizidis on 25 Mar 2022
Commented: stelios loizidis on 25 Mar 2022
Hello,
I have a matrix A (1X40). For this matrix I make its bar-plot. Aslo, I have the matrix B (1X40) which contains values, which I want to put as an label above each bar. I wrote a small code, but the values in matrix B do not appear (such label) above each bar. Below is the code.
bar(A) % 1X40
labels = arrayfun(@(value) num2str(values,'0.0f'),B,'UniformOutput',false);
text(A,B,labels,HorizontalAlignment','center',VerticalAlignment','bottom')
Your help is important !!!

Accepted Answer

Riccardo Scorretti
Riccardo Scorretti on 25 Mar 2022
Hi. Up to my understanding, the problem seems to be that when you use bar(A) the coordinates along x are 1, 2, ... 40. Assuming that variables A, B, and labels are correctly defined you could try this:
text(1:40, A, labels, 'HorizontalAlignment', 'center', 'VerticalAlignment', 'bottom');
For instance:
A = rand(1,40); B = rand(1,40);
labels = arrayfun(@(value) num2str(value,'%0.0f'),B,'UniformOutput',false);
bar(A);
text(1:40, A, labels, 'HorizontalAlignment', 'center', 'VerticalAlignment', 'bottom');
  1 Comment
stelios loizidis
stelios loizidis on 25 Mar 2022
It works!!!! Thanks for the valuable help !!!!

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More Answers (2)

Arif Hoq
Arif Hoq on 25 Mar 2022
Edited: Arif Hoq on 25 Mar 2022
please expand the plot for a clear view.
A=1:5:200;
B=1:40;
bar(B)
text(1:length(A),B,num2str(B'),'VerticalAlignment','bottom','HorizontalAlignment','center');
box off

Chunru
Chunru on 25 Mar 2022
A = 1:10;
B = randn(1, 10)*10;
bar(A, B, 0.5);
labels = compose('%.0f', B);
labels = 1×10 cell array
{'9'} {'8'} {'-3'} {'-7'} {'12'} {'-31'} {'-2'} {'9'} {'-8'} {'-11'}
text(A, B, labels, 'HorizontalAlignment','center','VerticalAlignment','bottom')

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