compare_observations_by_id: Compare Observations by ID Variables

In clinCompare: Dataset Comparison with 'CDISC' Validation for Clinical Trial Data

Compare Observations by ID Variables

Description

Internal function to match rows between two datasets using specified key variables, then compare values on matched rows. Also identifies unmatched rows in either dataset.

Usage

compare_observations_by_id(df1, df2, id_vars, common_cols, tolerance = 0)

Arguments

df1	First data frame (base).
df2	Second data frame (compare).
id_vars	Character vector of ID column names.
common_cols	Character vector of common column names.
tolerance	Numeric tolerance value for floating-point comparisons (default 0). When tolerance > 0, numeric values are considered equal if their absolute difference is within the tolerance threshold. Character and factor columns always use exact matching regardless of tolerance.

Value

A list with:

observation_comparison	List with discrepancies and details (same structure as compare_observations() output), plus id_details containing the ID variable values for each difference
unmatched_rows	List with df1_only and df2_only data frames

clinCompare documentation built on Feb. 19, 2026, 1:07 a.m.