as.relation function

Surmise Relations of Knowledge Structures

Computes the surmise relation of knowledge structures.

## S3 method for class 'kstructure'
as.relation(x, ...)
  ## S3 method for class 'kbase'
as.relation(x, ...)
  ## S3 method for class 'kfamset'
as.relation(x, ...)

Arguments

• x: An object of class kstructure, kbase, or kfamset.
• ...: Currently not used.

Details

as.relation takes an arbitrary knowledge structure and computes the surmise relation of the corresponding quasi-ordinal knowledge space. Antisymmetric (and transitive) surmise relations may then be plotted as a Hasse diagram.

Returns

An object of class relation.

References

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

See Also

kstructure, kbase, kfamset, relation, plot

Examples

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")))
as.relation(kst)