Adjacency Matrices

Adjacency matrices show the number of direct links between vertices in a network. The topmost row and the leftmost column consist of the vertex labels, and the number in the corresponding cell indicates the number of direct links between the vertices. If A is directly linked to B then B is directly linked to A, so the adjacency matrix is symmetrical about the diagonal from upper left to bottom right.


A

B

C

D

E

F

A

0

1

0

2

0

0

B

1

0

1

0

0

0

C

0

1

0

1

0

1

D

2

0

1

0

1

1

E

0

0

0

1

1

1

F

0

0

1

1

1

0

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