association_matrix

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.

A framework for systematic exploration of
association rules (Agrawal et al., 1994, <https://www.vldb.org/conf/1994/P487.PDF>),
contrast patterns (Chen, 2022, <doi:10.48550/arXiv.2209.13556>),
emerging patterns (Dong et al., 1999, <doi:10.1145/312129.312191>),
subgroup discovery (Atzmueller, 2015, <doi:10.1002/widm.1144>),
and conditional correlations (Hájek, 1978, <doi:10.1007/978-3-642-66943-9>).
User-defined functions may also be supplied to guide custom pattern searches.
Supports both crisp (Boolean) and fuzzy data. Generates candidate conditions
expressed as elementary conjunctions, evaluates them on a dataset, and
inspects the induced sub-data for statistical, logical, or structural
properties such as associations, correlations, or contrasts. Includes methods
for visualization of logical structures and supports interactive exploration
through integrated Shiny applications.

Michal Burda

nuggets

Extensible Framework for Data Pattern Exploration

association_matrix function

<dl><dt>x</dt>
<dd>A nugget of flavour <code>associations</code>.</dd>
<dt>value</dt>
<dd>A tidyselect expression (see
<a href="https://tidyselect.r-lib.org/articles/syntax.html">tidyselect syntax</a>)
specifying the column to use for filling the matrix values.</dd>
<dt>error_context</dt>
<dd>A list of details to be used in error messages.
It must contain:
- <code>arg_x</code>: the name of the <code>x</code> argument;
- <code>arg_value</code>: the name of the <code>value</code> argument;
- <code>call</code>: an environment in which to evaluate the error messages.
Defaults to the current environment.</dd></dl>

Arguments

Author

Create an association matrix from a nugget of flavour associations. — association_matrix

<dl>

<dt>x</dt>
<dd>A nugget of flavour <code>associations</code>.</dd>


<dt>value</dt>
<dd>A tidyselect expression (see
<a href='https://tidyselect.r-lib.org/articles/syntax.html'>tidyselect syntax</a>)
specifying the column to use for filling the matrix values.</dd>


<dt>error_context</dt>
<dd>A list of details to be used in error messages.
It must contain:
- <code>arg_x</code>: the name of the <code>x</code> argument;
- <code>arg_value</code>: the name of the <code>value</code> argument;
- <code>call</code>: an environment in which to evaluate the error messages.
Defaults to the current environment.</dd>

</dl>

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

Description

Usage

Value

Arguments

Author

Details