daltoolbox (version 1.3.787)

pat_support_threshold: Pattern support threshold strategy

Description

Configure how a minimum support threshold is estimated during fit().

Usage

pat_support_threshold(
  method = c("curvature", "min_count", "sqrt", "quantile", "density"),
  min_count = 10,
  q = 0.25,
  scale = 1,
  min = 0.001,
  max = 0.5
)

Value

A pat_support_threshold object.

Arguments

method

Strategy name: "curvature", "min_count", "sqrt", "quantile", or "density".

min_count

Minimum absolute transaction count for "min_count".

q

Quantile of item frequencies for "quantile".

scale

Multiplicative factor used by "quantile" and "density".

min

Minimum allowed support.

max

Maximum allowed support.

Examples

pat_support_threshold("curvature")
pat_support_threshold("min_count", min_count = 20)
pat_support_threshold("quantile", q = 0.25, scale = 0.5)