association_matrix: Create an association matrix from a nugget of flavour...

In nuggets: Extensible Framework for Data Pattern Exploration

Create an association matrix from a nugget of flavour associations.

Description

The association matrix is a matrix where rows correspond to antecedents, columns correspond to consequents, and the values are taken from a specified column of the nugget. Missing values are filled with zeros.

Usage

association_matrix(
  x,
  value,
  error_context = list(arg_x = "x", arg_value = "value", call = current_env())
)

Arguments

x	A nugget of flavour associations.
value	A tidyselect expression (see tidyselect syntax) specifying the column to use for filling the matrix values.
error_context	A list of details to be used in error messages. It must contain: - arg_x: the name of the x argument; - arg_value: the name of the value argument; - call: an environment in which to evaluate the error messages. Defaults to the current environment.

Details

A pair of antecedent and consequent must be unique in the nugget. If there are multiple rows with the same pair, an error is raised.

Value

A numeric matrix with row names corresponding to antecedents and column names corresponding to consequents. Values are taken from the column specified by value. Missing values are filled with zeros.

Author(s)

Michal Burda

nuggets documentation built on Nov. 5, 2025, 6:25 p.m.