0 个投票

I am using Bar plot for plotting the following code i am using
ABC=xlsread('ABC.xlsx');
figure(1);
for i= 0:3
A= bar(ABC(:,i+1:i+3))
set(gca,'XTicklabel',{'25','50','75','100'})
xlabel('time')
for j=1:3
text(A(i),sprintf('(%.0f)',A(i)))
end
end
But I want the y data on it how can i proceed any hint i am using text command...Any changes in code can anyone suggest Thank you in advance ..Also i am using Matlab 2016b version

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Ankit
Ankit 2022-1-19
Ran in:

0 个投票

Ran in:
text(A(i),sprintf('(%.0f)',A(i))) - your syntax seems doesn't right. Please follow the following syntax to defined values of y on your bar plot.
text(x,y,'string','PropertyName',PropertyValue....).
I tested this code on 2014b. Though it can be easily done with later version.
close all;
x = [25 50 75];
vals = [6000 3000 3100;7000 3100 3200;7900 3100 3200];
b = bar(x,vals);
dx = [-5, 0 , 5];
for i = 1:length(x)
for j = 1:length(vals)
text(x(i)+dx(j),vals(i,j),num2str(vals(i,j),'%.0f'),...
'HorizontalAlignment','center',...
'VerticalAlignment','bottom')
end
end

4 个评论
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Prasad Joshi
Prasad Joshi 2022-1-19
Thank you ankit it work for me ...But one error i am getting at the last part the data is not showing ..actually I am new to matlab coding can you please help me that also why this error I am attaching the code and graph
emissions=xlsread('emissions.xlsx');
i= 0
X=[ 25 50 75 100]
A= emission(:,i+1:i+3)
bar(X,A)
dx = [-5, 0 ,5];
for i = 1:length(x)
for j = 1:length(vals)
text(x(i)+dx(j),vals(i,j),num2str(vals(i,j),'%.0f'),...
'HorizontalAlignment','center',...
'VerticalAlignment','bottom')
end
end
Thank you ankit for the help ...Please can you guide in this also how can i solved it
Ankit
Ankit 2022-1-19
As you are new to MATLAB please refer to the MATLAB onramp course. MATLAB Onramp - MATLAB & Simulink Tutorial (mathworks.com)
I would also recommend to refer to the MATLAB knowledge base. And following links are helpful too.
MATLAB Documentation - MathWorks Deutschland
Undocumented Matlab - professional Matlab consulting, development and training
the outer loop runs 4 times for values from 25 to 100. The inner loop runs 3 times.
for j = 1:length(vals)
for i = 1:length(x)-1
text(x(j)+dx(i),vals(j,i),num2str(vals(j,i),'%.0f'),...
'HorizontalAlignment','center',...
'VerticalAlignment','bottom')
end
end
Prasad Joshi
Prasad Joshi 2022-1-19
Thank you ankit ...It worked
Prasad Joshi
Prasad Joshi 2022-1-19
Ankit can you please help me out in this question also it would be highly helpful and thank you for the links I will go through it .
https://in.mathworks.com/matlabcentral/answers/1630970-for-loop-overriding-pervious-data?s_tid=srchtitle

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更多回答（2 个）

KSSV
KSSV 2022-1-19
Ran in:

1 个投票

Ran in:
n = 5 ;
x = (1:n) ;
y = randi(n,n,1) ;
bar(x,y)
hold on
text(x,y+0.1,num2str(y))
ylim([0 6])
Simon Chan
Simon Chan 2022-1-19
编辑：Simon Chan 2022-1-19

1 个投票

Why not using the example in the documentation by getting the EndPoints as follows:
clear;
clc;
x = [25 50 75];
vals = [6000 3000 3100;7000 3100 3200;7900 3100 3200];
b = bar(x,vals);
dx = [-5, 0 , 5];
text(cat(2,b.XEndPoints),cat(2,b.YEndPoints),string(cat(2,b.YData)),'HorizontalAlignment','center',...
'VerticalAlignment','bottom')

2 个评论
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Ankit
Ankit 2022-1-19
@Simon Chan: 'XEndPoints' property is available from 2019b version I think. And he is using 2016b.
Prasad Joshi
Prasad Joshi 2022-1-19
Thank you Simon chan ...You answer was highly helpful

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