.summarize_keys

Creates a summary of a key column or composite key.

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

.summarize_keys function

<dl><dt>data</dt>
<dd>A data frame.</dd>
<dt>by</dt>
<dd>Column name(s) to summarize.</dd></dl>

Arguments

Summarize Key Column — .summarize_keys

<dl>

<dt>data</dt>
<dd>A data frame.</dd>


<dt>by</dt>
<dd>Column name(s) to summarize.</dd>

</dl>

.summarize_keys: Summarize Key Column

Description

Usage

Value

Arguments