katoms.Rd
Computes atoms of knowledge structures.
katoms(x, items)
x | An R object of class |
---|---|
items | A |
For any item q of the knowledge domain Q, an atom at q is a minimal knowledge state containing q, where minimal refers to the fact that the respective knowledge state is not the union of any other knowledge states.
A list where each element represents the atom(s) of one item specified in
items
.
Doignon, J.-P., Falmagne, J.-C. (1999) Knowledge Spaces. Heidelberg: Springer Verlag.
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"))) katoms(kst, items=set("a","b","c"))#> $a #> {{"a"}} #> #> $b #> {{"a", "b"}} #> #> $c #> {{"a", "c"}} #>