How do I add the numbers on top of the bar graph?

Question

Belle Dionido 2022-4-29

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1707765-how-do-i-add-the-numbers-on-top-of-the-bar-graph

编辑： Belle Dionido 2022-4-29

file = input("Please enter the name of the data file : ",'s');
[num,txt,raw] = xlsread(file);
amino_names = txt(3:end,1);            
atomic_weights = [15.994; 12.01; 14; 32.065; 1.01];
amino_weights = num * atomic_weights;
amino_weights = round(amino_weights,2);             
disp("**** The report is ready ****");
T = table(amino_names,amino_weights);
T.Properties.VariableNames = {'Amino Acid','Molecular Weight'};   
disp(T)                                                             
bar(amino_weights)
ylabel("Molecular Weights")
title("Molecular weights for different amino acids")
xticks(1:length(amino_names))  
xticklabels(amino_names)   
xtickangle(90)
% How do I add the numbers on top of the bar graph? 
% Thank you!

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

KSSV 2022-4-29

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1707765-how-do-i-add-the-numbers-on-top-of-the-bar-graph#answer_953480

在 MATLAB Online 中打开

A = rand(3,1) ;

h = bar(A) ;

text(h.XData,h.YData+0.05,num2str(A)) ;

2 个评论
显示无隐藏无

Belle Dionido 2022-4-29

What are the h.XData, h.YData+0.05?

KSSV 2022-4-29

REad about text, it needs positions (x,y) to place the text you want. h.XData, h.YData are those positions which can be obtained from the plot. You can try it yourself.

请先登录，再进行评论。

Answer 2

Belle Dionido 2022-4-29

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1707765-how-do-i-add-the-numbers-on-top-of-the-bar-graph#answer_953485

在 MATLAB Online 中打开

%I replaced xticks(1:length(amino_names)) with:
text(1:length(amino_names),amino_weights,num2str(amino_weights, '%0.2f'),'HorizontalAlignment','center','VerticalAlignment','bottom');