[R] adjacency matrix

[Mehdi Ghafariyan]

Hi all;
I have two vectors A=c(5,2,2,3,3,2) 
and B=c(2,3,4,5,6,1,3,2,4,3,1,5,1,4,6,1,4)
and I want to make the following matrix
using the information I have from the above
vectors.

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

so the first vector says that I have 6
elements therefor I have to make a 
6 by 6 matrix and then I have to read 
5 elements from the second 
vector , and put 1 in [1,j] where j=2,3,4,5,6
and put zero elsewhere( i.e. in [1,1])
and so on.
Any idea how this can be done in R ?

                                   cheers
                                      Mehdi
        

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