simplify_z2_rem

<p>La table individuelle (format data.table) Chaque ligne repr&lt;U+00E9&gt;sente une observation
et elle doit au moins contenir deux colonnes nomm&lt;U+00E9&gt;es 'z1' et 'z2' et indiquant
&lt;U+00E0&gt; quels zonages appartient l'observation.</p>

t_ind

<p>Cette fonction permet de retirer de la table individuelle, les observations
contenues dans une zone de z2 enti&lt;U+00E8&gt;rement incluse dans une seule zone de z1.
Une zone de z2 est enti&lt;U+00E8&gt;rement incluse dans une autre zone si toutes les
observations qu'elle contient sont &lt;U+00E9&gt;galement contenue dans cette autre zone.</p>

An algorithm based on graph theory tools to detect differentiation
problems. A differentiation problem occurs when aggregated
data are disseminated according to two different nomenclatures. By making the
difference for an additive variable X between an aggregate composed of categories
of the first nomenclature and an other aggregate, included in that first
aggregate, composed of categories of the second nomenclature,
it is sometimes possible to derive X on a small aggregate of records
which could then lead to a break of confidentiality.
The purpose of this package is to detect the set of aggregates composed of
categories of the first nomenclature which lead to a differentiation problem,
when given a confidentiality threshold. Reference: Vianney Costemalle (2019) <doi: 10.3233/SJI-190564>.

Vianney Costemalle

diffman

simplify_z2_rem: Enlever les zones de z2 enti<U+00E8>rement incluses dans une zone de z1

Description

Usage

Arguments

Value