dig_ancestors: Dig ancestors of an association rule

In nuggets: Extensible Framework for Data Pattern Exploration

Dig ancestors of an association rule

Description

Searches for all association rules that are ancestors of the given association rule, i.e. all rules whose antecedent is a subset of the antecedent of the given rule and whose consequent is equal to the consequent of the given rule. The search is performed using the same disjoint, excluded, and t_norm parameters as the original search that produced the given rule.

Usage

## S3 method for class 'associations'
dig_ancestors(x, data, ...)

dig_ancestors(x, data, ...)

Arguments

x	A nugget of flavour associations containing a single association rule. (Typically created with dig_associations().)
data	a matrix or data frame with data to search in. The matrix must be numeric (double) or logical. If x is a data frame then each column must be either numeric (double) or logical.
...	further arguments (currently not used).

Value

A nugget of flavour associations containing all association rules that are ancestors of the given rule x.

Author(s)

Michal Burda

See Also

dig_associations()

Examples

d <- partition(mtcars, .breaks = 2)
rules <- dig_associations(d,
                          antecedent = !starts_with("mpg"),
                          consequent = starts_with("mpg"),
                          min_support = 0.3,
                          min_confidence = 0.8)
r <- rules[1, ]  # get first rule
anc <- dig_ancestors(r, d)

nuggets documentation built on March 11, 2026, 5:06 p.m.