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?

You need to show some code and clarify your question. As it is written this question should be closed as it is not providing a clear example of the problem — PyNEwbie, Nov 23 '15 at 14:29
number_tags= 10. a want to create 10 vectors with 8 bits. Also I want to randomly choose number 1 in each tag. For example: Tag1 = [00100000]; Tag2 = [00000100]; Tag3 = [01000000]; — NikolaC, Nov 23 '15 at 14:31
How about you create a [random integer](http://nl.mathworks.com/help/stats/random.html) and [turn it into a binary number](http://nl.mathworks.com/help/fixedpoint/ref/bin.html) — Johannes, Nov 23 '15 at 14:34

Mikhail_Sam · Accepted Answer · 2015-11-24T12:06:33.900

0

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;

edited Nov 24 '15 at 12:06

answered Nov 23 '15 at 14:47

Mikhail_Sam

10,602
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I want for bigger number of tags. And as you can see does not working for Tag3 – NikolaC Nov 23 '15 at 14:53
In your question `n=10` so it works. But ok i will make it for any n. For `Tag3` works too, of course, if you add `Tag3 = zeros(1,8)` similarly. – Mikhail_Sam Nov 23 '15 at 14:56
Friend, could you see this: clear all clc; c = 16; r = 8; n= 10; c = zeros(n,c); I want to every row in this matric has one random 1 on some position. OK? – NikolaC Nov 23 '15 at 15:14
@NikolaC ok, try this. Is this you want? – Mikhail_Sam Nov 23 '15 at 15:18
I saw that some row has double values of 1? – NikolaC Nov 23 '15 at 15:32
For example last row has four value of 1. Could you see? – NikolaC Nov 23 '15 at 15:36
I wrote `every column` ) ok, if you need rows just use `Tag = Tag';` after all and you'll get it! – Mikhail_Sam Nov 24 '15 at 06:24
But if I do Tag = Tag'; I change size of matrix. Now is 10x8 instead 8x10 – NikolaC Nov 24 '15 at 10:53
So, change `r` and `n` values. I will edit my answer – Mikhail_Sam Nov 24 '15 at 11:05
OK. Thank you. One more question. @Mikhail_Sam how can i calculate final bits. Please look example: [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 0 0 0 0 0 0 0 0] Result: [0 1 0 0 0 0 0 0 0 1 0 0] – NikolaC Nov 24 '15 at 11:11
I want if you can to write how to calculate this result? – NikolaC Nov 24 '15 at 11:20
@NikolaC is this ok? – Mikhail_Sam Nov 24 '15 at 11:35
Great @Mikhail_Sam. I want one more thing. How to calculate number of '1' and '0' in result? – NikolaC Nov 24 '15 at 11:36
OKEY) @NikolaC look at my answer – Mikhail_Sam Nov 24 '15 at 11:43
Thank you @Mikhail_Sam. You help me a lot – NikolaC Nov 24 '15 at 12:10
@NikolaC can you then accept my answer? ) – Mikhail_Sam Nov 24 '15 at 12:17
Of course. Sorry and thank you – NikolaC Nov 24 '15 at 13:53

Random creating binary ID

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