.analyze_match

Compares keys from two tables to determine overlap.

internal

Provides diagnostic tools for understanding and debugging data frame
joins. Analyzes key columns before joining to detect duplicates, mismatches,
encoding issues, and other common problems. Explains unexpected row count
changes and provides safe join wrappers with cardinality enforcement. Concepts
and diagnostics build on tidy data principles as described in Wickham (2014)
<doi:10.18637/jss.v059.i10>.

Gilles Colling

joinspy

Diagnostic Tools for Data Frame Joins

.analyze_match function

<dl><dt>x_keys</dt>
<dd>Vector of keys from left table (NA removed).</dd>
<dt>y_keys</dt>
<dd>Vector of keys from right table (NA removed).</dd>
<dt>x_n_rows</dt>
<dd>Total rows in left table.</dd></dl>

Arguments

Analyze Match Between Two Key Sets — .analyze_match

<dl>

<dt>x_keys</dt>
<dd>Vector of keys from left table (NA removed).</dd>


<dt>y_keys</dt>
<dd>Vector of keys from right table (NA removed).</dd>


<dt>x_n_rows</dt>
<dd>Total rows in left table.</dd>

</dl>

.analyze_match: Analyze Match Between Two Key Sets

Description

Usage

Value

Arguments