Labels above bar-plot

Question

stelios loizidis 2022-3-25

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评论： stelios loizidis 2022-3-25

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 !!!

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Answer 1

Riccardo Scorretti 2022-3-25

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在 MATLAB Online 中打开

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');