Hi,
Here is a listw object z corresponding to the matrix W. I understand n,
nn, S0, S1 and S2 in the weights constants summary. Is it simply so that
n1 = n-1, n2 = n-2 and n3 = n-3? If this is true where they are needed?
Just wondering
Osmo
> W
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9]
[1,] 0 1 0 1 0 0 0 0 0
[2,] 1 0 1 0 1 0 0 0 0
[3,] 0 1 0 0 0 1 0 0 0
[4,] 1 0 0 0 1 0 1 0 0
[5,] 0 1 0 1 0 1 0 1 0
[6,] 0 0 1 0 1 0 0 0 1
[7,] 0 0 0 1 0 0 0 1 0
[8,] 0 0 0 0 1 0 1 0 1
[9,] 0 0 0 0 0 1 0 1 0
> z=mat2listw(W);z
Characteristics of weights list object:
Neighbour list object:
Number of regions: 9
Number of nonzero links: 24
Percentage nonzero weights: 29.62963
Average number of links: 2.666667
Weights style: M
Weights constants summary:
n n1 n2 n3 nn S0 S1 S2
M 9 8 7 6 81 24 48 272
