Clustering spatially connected polygons so all clusters have approximately the same size

What does spatially clustered mean?

Knox (1989, p. 17) defines a spatial cluster as, ‘a geographically bounded group of occurrences of sufficient size and concentration to be unlikely to have occurred by chance. ‘ This is a useful operational definition, but there are very few situations when phenomena are expected to be distributed randomly in space.
 

What is spatially constrained multivariate clustering?

Spatially Constrained Multivariate Clustering is an implementation of the SKATER algorithm and works by growing and pruning a minimum spanning tree to create similar clusters. Learn more about the algorithms behind SKATER here.

Why are clusters important to spatial analysis?

Spatial cluster analysis plays an important role in quantifying geographic variation patterns. It is commonly used in disease surveillance, spatial epidemiology, population genetics, landscape ecology, crime analysis and many other fields, but the underlying principles are the same.

What are clusters in GIS?

Geospatial clustering is the method of grouping a set of spatial objects into groups called “clusters”. Objects within a cluster show a high degree of similarity, whereas the clusters are as much dissimilar as possible.
 

What is mean by spatially?

/ˈspeɪ.ʃəl/ relating to the position, area, and size of things: This task is designed to test children’s spatial awareness (= their understanding of where things are in relation to other things). Space – general words. bay.
 

Whats the meaning of spatially?

: relating to, occupying, or having the character of space. : of, relating to, or involved in the perception of relationships (as of objects) in space.

What is multivariate spatial analysis?

Multivariate analysis is an array of statistical methods for quantifying the relations among many variables in a set of observations. Since many processes involve more than one variable, allowance for their dependence on each other is essential in modeling and in understanding their covariance (Momson 1976).

What does spatially constrained mean?

Spatial Constraints. (Optional) Specifies how spatial relationships among features will be defined. Contiguity edges only—Clusters will contain contiguous polygon features. Only polygons that share an edge can be part of the same cluster.

What are the 3 clustering techniques?

Types of Clustering

• Centroid-based Clustering.
• Density-based Clustering.
• Distribution-based Clustering.
• Hierarchical Clustering.

What does spatially variant mean?

Spatial variability refers to the phenomenon that a quantity that is measured at different spatial locations exhibits values that differ across the locations.

What does spatially structured mean?

However, in these notes, the term spatial or space structure refers to a structure made of an assemblage of linear members interconnected to each other in space, resisting loads applied at their connections or along their lengths.

What is spatial clustering in image processing?

Spatial clustering is the process of grouping a set of objects into classes or clusters so. that objects within a cluster have high similarity in comparison to one another, but. are dissimilar to objects in other clusters .