The fundamental purpose of Permap is to uncover hidden structure that might be residing in a complex data set. it is an interactive computer program which offers metric (ratio and interval) and non metric (ordinal, ratio+bounds and intervals+bounds) MDS techniques. PERMAP takes object-to-object proximity values (also called similarities, dissimilarities, correlations, distances, interactions, psychological distances, dependencies, preferences, joint or conditional probabilities, etc.), or up to 30 object attribute values which can be used to calculate one of the forgoing types of proximities, and uses multidimensional scaling (MDS) to make a map that shows the relationships between the objects. PERMAP gives you more real-time control over your solution than any other MDS program.
The map which is produced has the following characteristics:
- How far or close the objects are present is shown.
- A vector on the map indicates both magnitude and direction.
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