hi,,,I am trying to generate a 12 bit data string whose 30% bit will be erased.How can I do that?

The data string is A=[ 1 0 0 0 0 0 0 1 1 0 1 0];

I am trying to generate a binary erasure channel.I am replacing the erased bit with number 3.if my erasure probability is 25% (the probability of every bit is erased and replaced by 3 is 25%),then how do I write the code for that? Thanks in advance

Answer 1

[Jan]

A = [1 0 0 0 0 0 0 1 1 0 1 0];
A(rand(size(A)) <= 0.25) = 3;

[nafila aytija]

hi,thank you for your answer,But when i am trying to run this code it gives an error message saying"attempt to generate SCRIPT as a FUNCTION"