fdm2id: filter.rules – R documentation

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filter.rules

Filtering a set of rules

This function facilitate the selection of a subset from a set of rules.

filter.rules(
  rules,
  pattern = NULL,
  left = pattern,
  right = pattern,
  removeMatches = FALSE
)

`rules`	A set of rules.
`pattern`	A pattern to match (antecedent and consequent): a character string.
`left`	A pattern to match (antecedent only): a character string.
`right`	A pattern to match (consequent only): a character string.
`removeMatches`	A logical indicating whether to remove matching rules (`TRUE`) or to keep those (`FALSE`).

The filtered set of rules.

require ("arules")
data ("Adult")
r = apriori (Adult)
filter.rules (r, right = "marital-status=")
subset (r, subset = rhs %pin% "marital-status=")

Data Mining and R Programming for Beginners

v0.9.5

GPL-3

Authors

Alexandre Blansché [aut, cre]

Initial release