Define Polygon Weights

You set spatial weights for a polygon geography by choosing how to define a neighbor and by defining weight values for these neighbors. To create a new spatial weights, open the spatial weights and cluster sets view by selecting this view under the "Window" menu. Then, right click on the geography for which you would like to create a new weight set and select "Define new spatial weight set" to invoke the dialog below.

To create new spatial weights, choose among these options. To edit an existing weights set, you can change the options using this same dialog and then save your changes by clicking "OK".

Neighbor criterion	Choose Rook or Queen.
Neighbor rings	Specify the number of neighbor rings you want to include in the calculation. Specifying one ring means including those polygons that share a common border, also known as "first order neighbors". Two rings means to include those that contact the first ring ("second order neighbors"), and so on. Please note that the more rings you include in your analysis, the longer it will take SpaceStat to calculate them.
Include ego?	Generally, spatial weights sets do not have a weight between ego and itself. Some statistical methods, for example the local G* do. Leave this blank unless you intend to calculate the local G*.
Neighbor weight method	Constant	This is the simplest method. The more neighbors a polygon has, the more it is influenced by them.
	Standardized by neighbor count	If you standardize by neighbor count, SpaceStat will normalize by the number of neighbors. It will not allow some polygons to have a higher total weight than others. This is also called "row standardized weights."
	Length of shared border	This weight is based on how much border exists between polygons. Since Queen borders are points, and would have zero weight, this weight only makes sense with Rook adjacencies.
	Standardized length of shared border	Similar to standardized by neighbor count.

Once you've chosen your settings, press "OK." SpaceStat will save your definition and when you invoke a statistic that requires neighbor adjacencies, your newly defined spatial weights set will appear in the list.

Note: Islands have no adjacent polygons.