please the 'for' loop in the following program

clear;
clc;
b = input('Enter the Bit stream \n ');
%b = [0 1 0 1 1 1 0];
n = length(b);
t = 0:.01:n;
x = 1:1:(n+1)*100;

for i = 1:n
    if (b(i) == 0)
        b_p(i) = -1;
    else
        b_p(i) = 1;
    end
    for j = i:.1:i+1
        bw(x(i*100:(i+1)*100)) = b_p(i);        
    end
end

bw = bw(100:end);

sint = sin(2*pi*t);

st = bw.*sint;

subplot(3,1,1)
plot(t,bw)
grid on ; axis([0 n -2 +2])
subplot(3,1,2)
plot(t,sint)
grid on ; axis([0 n -2 +2])
subplot(3,1,3)
plot(t,st)
grid on ; axis([0 n -2 +2])

[Paulo Silva]

please the fix your code and please the explain what you want :)

PS: This time I'm written with broken English on purpose

[Jan]

@Paulo: Why this broken is? Please do not confuse me German speaker.

[Jan]

@Krishna: Please format your code by editing your original message (see the "{} Code" button) and ask a question. It is not clear if there is a problem at all, and if so, which FOR loop could be meant.

[Sean de Wolski]

@Jan: never end a sentence with "is" "was" "were" "as" "like" since they have to modify something.

Correction: "why is this broken? Please do not confuse me {'as a', 'the', 'this'} German speaker." Since you need to correlate "German speaker" to "me."

[Sean de Wolski]

@Paulo, can you edit posts/how does that work?

[Walter Roberson]

Paulo has reached a reputation level sufficient to have been invited to be a MATLAB Answers Community Editor; I do not, though, know whether the configuration change needed for him to actually edit has gone through yet.

The Community Editors have access to the normal "edit" button on all Answers, and can delete any Comment or Answer or even Question; the buttons for doing that are simply the normal buttons that the original poster would have.

[Paulo Silva]

Walter and Sean my editor status is still waiting to be implemented but I really don't have time do be here editing messages (have just a month to finish my thesis), my main reason to be here is just to learn and try to help others.

Answer 1

[Sean de Wolski]

b_p = ones(size(b));
b_p(~b) = -1;
bw = [kron(b_p,ones(1,100)) b_p(end)];

creates the same thing you have for b_p, bw...