[R] Lattice nb/wlist help

[Gary Nobles]

hi I am still tryingto do this, I have been working on this for a year but i
have remained stuck...

I have points at regular intervals but within an irregular window

I need to make a nb weights matrix, then nb2wlist 
conceptually a D8 neighbourhood something like this:

0000000
0000000
0011100
0011100
0011100
0000000
0000000

but I also want another matrix like this (D24):

0000000
0111110
0111110
0111110
0111110
0111110
0000000

and so on...

If anyone can help I would be very grateful

Gary

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