Random creating binary ID

Question

Could you help me? I have n = 10 (ten tags) with 8 bits value each. Every tag should have one randomly created 1's in ID (for example 00000100, 01000000). How can I do this in Matlab?

Answer 1

Let's try this:

n = 10;
r = 8;
k = randi(r,1,n);
Tag  = zeros(r,n);
Tag(r*(find(k)-1) + k)=1;
Tag = Tag';

So:

k =

8     8     5     2     2     3     7     3     7     2

Tag =

 0     0     0     0     0     0     0     1
 0     0     0     0     0     0     0     1
 0     0     0     0     1     0     0     0
 0     1     0     0     0     0     0     0
 0     1     0     0     0     0     0     0
 0     0     1     0     0     0     0     0
 0     0     0     0     0     0     1     0
 0     0     1     0     0     0     0     0
 0     0     0     0     0     0     1     0
 0     1     0     0     0     0     0     0

Now each row - your Tag. For example, Tag1 = Tag(1,:).

In this case lets find needed result: if we need only logical values (1 if there is 1 in any row, and 0 if there is no any 1 in column) we have to add this:

result = sum(Tag);
result(find(result))=1
result =
0     1     1     0     1     0     1     1

Number of ones and zeros:

c1 = sum(result);
c0 = numel(result) - c1;