Correction of Heaping on Individual Level
Bachi's Index of Age Heaping
Coale-Li Age Heaping Index
Correct Age Heaping
Correct a Single Age Heap
Calculate All Heaping Indices
heaping: Correction of Heaping on Individual Level
Jdanov's Old-Age Heaping Index
Kannisto's Age Heaping Index
Myers' Blended Index of Age Heaping
Noumbissi's Digit Heaping Index
Spoorenberg's Total Modified Whipple Index
Sprague Index (Multipliers)
Whipple Index (Original and Modified)
Provides methods for correcting heaping (digit preference) in survey data at the individual record level. Age heaping, where respondents disproportionately report ages ending in 0 or 5, is a common phenomenon that can distort demographic analyses. Unlike traditional smoothing methods that only correct aggregated statistics, this package corrects individual values by replacing a calculated proportion of heaped observations with draws from fitted truncated distributions (log-normal, normal, or uniform). Supports 5-year and 10-year heaping patterns, single heap correction, and optional model-based adjustment to preserve covariate relationships.