could anyone help me please?

clc; clear all ;close all;
close all;
data_size=8;
data=randi([0 1],data_size,1);data=data';
bp=0.000001;
disp('Binary information at transmitter :');
disp(data);
% repr of trans binary info as digital
expand=100;
baseband=zeros(1,length(data)*expand);
for n=1:1:length(data)
    if data(n)==1
        se=ones(expand,1);
    else 
        data(n)=0;
        se=zeros(expand,1);
    end
    baseband((n-1)*expand+1:n*expand)=se;
end
figure
t_bits=bp/expand:bp/expand:expand*length(data)*(bp/expand);
subplot(2,1,1); 
plot(t_bits,baseband,'LineWidth',2.5);grid on; 
axis([ 0 bp*length(data) -.5 1.5]);
ylabel('amplitude(volt)');
xlabel(' time(sec)'); 
title([' transmitting informationas digital signal']);
hold on

[Image Analyst]

Is this one the duplicate or the other one? Or are they different? Which one should be have the discussion in?

[Mahra Albadi]

It's all the same code, but the image was cropped, so I copied the code to make it easier for you to solve the question

[Image Analyst]

I guess you finished answering before my last question was answered : "Which one should be have the discussion in?"

Let's delete one of the duplicate questions. The images look roughly the same size to me. Which question do you want to delete? This one or the other one?

[Mahra Albadi]

The question in the picture

[Mahra Albadi]

please help me!!

[Image Analyst]

OK but we don't want help in two different threads. So do you want me to delete this question:

https://www.mathworks.com/matlabcentral/answers/1594319-could-anyone-help-me-please?s_tid=srchtitle

(that we're looking at now), or this one:

https://www.mathworks.com/matlabcentral/answers/1594309-help-me-please-what-should-i-change-to-modify-the-code?s_tid=srchtitle

Which thread do you want deleted?

[Mahra Albadi]

delete this one

https://www.mathworks.com/matlabcentral/answers/1594309-help-me-please-what-should-i-change-to-modify-the-code?s_tid=srchtitle

[Image Analyst]

OK, done. Duplicate question deleted.

[Mahra Albadi]

will you help me or not? I need your help

[KSSV]

What is the question? What help you need? The given code works fine without any error.

[per isakson]

See Binary Amplitude Shift Keying. Is it something like this you are looking for? Remember, we are hesitant to do homework.

[Rik]

Comment posted as flag by @Mahra Albadi:

they need to change the amplitude 0 to 0.25 and 1 to 0.75