Glossary for Geospatial Science

cluster map: �The output raster created by clustering or by unsupervised classification.� The clusters are usually identified or labeled as some useful type of material (for example, an agricultural crop, a body tissue type, or a soil type).� It is important to note that this raster does not contain values that can be subjected to further mathematical analysis because the clusters and their reidentification as material or area types do not represent data values that are mathematically continuous.� For example, cells in a cluster arbitrarily assigned the value of 4 by the clustering process does not necessarily represent twice as much of something as a cell assigned to a cluster that was given a value of 2.