[R] creating matrix row by row

Ragia Ibrahim ragia11 at hotmail.com
Sat Mar 28 11:42:59 CET 2015


 I have a original adjacency  matrix  n X n , and I want to connect certain row with
 a set of other selected columns (could be not the same as in the 
original matrix).
this in each iteration I have a new row of this connections matrix , how to create this matrix.
having original row number and the numbers of columns that will be connected to.

   1 2 3 4 5
1  1 1 1 1 1
2  1 1 0 0 1

inf first iteration row 1 will have only connections to columns 2 and 5
and in secondly  row 2 will have only relation to column 2

how can I do this
thanks in advance

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