NcontributorsHolding: 'Ncontributors' with holding-indicator

In GaussSuppression: Tabular Data Suppression using Gaussian Elimination

Ncontributors with holding-indicator

Description

The aggregates (columns of x) are grouped by a holding indicator. Within each holding group, the number of unique groups (output) is set to be equal.

Usage

NcontributorsHolding(x, groups, holdingInd = NULL)

Arguments

x	A (sparse) dummy matrix
groups	Vector of group categories
holdingInd	Vector of holding group categories

Details

A representative within the holding group is used to calculate output by Ncontributors. The one with maximal column sum of x is chosen as the representative. Normally this will be an aggregate representing the holding group total. When holdingInd is NULL (default), the function is equivalent to Ncontributors.

Value

Vector of numbers of unique groups

Author(s)

Øyvind Langsrud

GaussSuppression documentation built on Aug. 25, 2025, 5:12 p.m.