Y data on the bar plot

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

Answer 1

[Ankit]

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

[Prasad Joshi]

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]

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]

Thank you ankit ...It worked

[Prasad Joshi]

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

Answer 2

[Simon Chan]

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')

[Ankit]

@Simon Chan: 'XEndPoints' property is available from 2019b version I think. And he is using 2016b.

[Prasad Joshi]

Thank you Simon chan ...You answer was highly helpful

Answer 3

[KSSV]

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])

[Prasad Joshi]

Thank you KSSV