I have about 19,000 spatial areas (DAs) that make up the province of Ontario. Each area has a number of birth events over 5 years. If there are <5 events confidentiality requires that I agglomerate with an adjacent DA.
I have linked each DA with <5 events to a neighboring DA.
Some DAs are linked to more than 1 DA.
Some DAs have more than 1 DA linked to them.
Where there are common links I need to form 1 aggregate spatial area (that may have multiple adjacent DAs).
Can anyone recommend a SAS procedure (or approach) that can help me to do this?