is_nugget

Check if the given object is a nugget, i.e. an object created by
<code>nugget()</code>. If a <code>flavour</code> is specified, the function returns <code>TRUE</code> only
if the object is a nugget of the given flavour.
Technically, nuggets are implemented as S3 objects. An object is considered
a nugget if it inherits from the S3 class <code>"nugget"</code>. It is a nugget of a
given flavour if it inherits from both the specified <code>flavour</code> class and
the <code>"nugget"</code> class.

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

is_nugget function

<dl><dt>x</dt>
<dd>An object to be tested.</dd>
<dt>flavour</dt>
<dd>Optional character string specifying the required flavour of
the nugget. If <code>NULL</code> (default), the function checks only whether <code>x</code> is
a nugget of any flavour.</dd></dl>

Arguments

Author

Test whether an object is a nugget — is_nugget

<dl>

<dt>x</dt>
<dd>An object to be tested.</dd>


<dt>flavour</dt>
<dd>Optional character string specifying the required flavour of
the nugget. If <code>NULL</code> (default), the function checks only whether <code>x</code> is
a nugget of any flavour.</dd>

</dl>

is_nugget: Test whether an object is a nugget

Description

Usage

Value

Arguments

Author

See Also

Examples