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# Grouping and sharing of subcarriers in a random manner

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Prabha Kumaresan el 19 de Dic. de 2017
Could anyone tell me how to group rows(row 1 with row 2 or row 3 with row 5 or row2 and row 3 with row5) in a random manner such that their values should be shared for the matrix C =
0 0.4089 0 0 0 0 0 0.4725 0 0 0 0
0 0 0 0.0038 0.0023 0 0 0 0 0 0 0
0 0 0.0018 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0.0003 0 0 0 0 0 0
0.0565 0 0 0 0 0 0 0 0.0263 0.0523 0 0
0 0 0 0 0 0 0.0313 0 0 0 0.0394 0.0367
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Prabha Kumaresan el 19 de Dic. de 2017
As i am unable to get the output in my code I am asking the question.
the final thing which i really required is for the above matrix i need user grouping with sharing of subcarriers and i want to get implemented in n number of rows and m number of columns.
Jan el 19 de Dic. de 2017
@Prabha: Posting multiple questions concerning the same problem confuses the readers. Stay at one thread and discuss it there in one piece. Please follow KL's valuable advice carefully.
As i am unable to get the output in my code I am asking the question.
Asking many questions is not an efficient way to solve a problem. Better concentrate on one question and spend the time to formulate it clearly.

### Respuestas (1)

Vigneshwar Pesaru el 3 de En. de 2018
It seems to be trivial code,if I understood properly.And I don't want to share any code but algorithm or logic to get your desired o/p.
1.Generate a random number between 1 and n;here n is nothing but [n,m]=size(i/p_matrix)
2.Declare a new empty matrix(as many times as you need) in a loop.
3.Start copying the elements row vise(how many number of rows you copy to the new empty matrix depends on the random number you have generated instantly).
Hope the above one works.