kst (version 0.5-0)

knotions: Notions of Knowledge Structures or Bases

Description

Computes notions of knowledge structures or bases.

Usage

knotions(x)

Arguments

x

An R object of class kstructure or kbase.

Value

A set of sets, each representing one notion of the knowledge structure.

Details

A notion is a set of items always jointly contained in some knowledge states. Consequently, these items carry the same information and may therefore be considered equivalent. A knowledge structure where each notion contains only one item is considered discriminative.

References

Doignon, J.-P., Falmagne, J.-C. (1999) Knowledge Spaces. Heidelberg: Springer Verlag.

See Also

reduction.kstructure, kstructure, set

Examples

# NOT RUN {
kst <- kstructure(set(set("a"), set("a","b"), set("a","c"), set("d","e"), 
   set("a","b","d","e"), set("a","c","d","e"), set("a","b","c","d","e")))
knotions(kst)
# }