plotting binary data to NRZ signal Format

i have a program like below :

a=dec2bin(n,8) . n is random input from 0 to 255. then i want to plot the result of 'a' into NRZ signal format. anyone can help me?

Answer 1

[Walter Roberson]

https://www.mathworks.com/matlabcentral/fileexchange/41320-line-coding--manchester--unipolar-and-polar-rz--unipolar-nrz File Exchange contribution

bits = reshape( (dec2bin(n,8) - '0').', 1, [] );
encoded_bits = unrz(bits)

Now you can plot the encoded bits

[khoirul wakiah nasution]

it's said error

[Walter Roberson]

Install the above contribution. Then

FS = 8000;              %sample frequency
n = randi([0 256], 1, 5);   %sample data

bits = reshape( (dec2bin(n,8) - '0').', 1, [] );
[t, encoded_bits] = unrz(bits, FS);
stairs(t, encoded_bits)

[khoirul wakiah nasution]

ok thank you for the answer. it's very helpful

[namita kathpal]

I am running this code and it is showing undefined function or variable unrz. Kindly help me in this regard.