Neighbourhood matrix

nb2mat(nb1, glist = ids, style = "B")[1:4, 1:7]

##       [,1]     [,2]     [,3]     [,4]     [,5] [,6] [,7]
## 1 0.000000 1.670235 1.725073 0.000000 0.000000    0    0
## 2 1.670235 0.000000 1.404736 2.943309 0.000000    0    0
## 3 1.725073 1.404736 0.000000 1.782670 1.910694    0    0
## 4 0.000000 2.943309 1.782670 0.000000 1.448959    0    0