inclusion.rule {eba} | R Documentation |
Checks if a family of sets fulfills the inclusion rule.
inclusion.rule(A)
A |
a list of vectors consisting of the stimulus aspects of an elimination-by-aspects model |
The inclusion rule is necessary and sufficient for a tree structure on the aspect sets:
Structure theorem. A family \{x' | x \in T\}
of aspect sets is
representable by a tree iff either x' \cap y' \supset x' \cap z'
or
x' \cap z' \supset x' \cap y'
for all x, y, z
in T
.
(Tversky and Sattath, 1979, p. 546)
Either TRUE
if the inclusion rule holds for A
, or FALSE
otherwise.
Tversky, A., & Sattath, S. (1979). Preference trees. Psychological Review, 86, 542–573. doi: 10.1037/0033-295X.86.6.542
A <- list(c(1, 5), c(2, 5), c(3, 6), c(4, 6)) # tree
inclusion.rule(A)
B <- list(c(1, 5), c(2, 5, 6), c(3, 6), c(4, 6)) # lattice
inclusion.rule(B)