safeObj-class: S4 class describing a safeObj-object

In bernhard-da/sdcTable: Methods for Statistical Disclosure Control in Tabular Data

Description

Objects of class safeObj are the final result after protection a tabular structure. After a successful run of protectTable an object of this class is generated and returned. Objects of class safeObj contain a final, complete data set (slot finalData) that has a column showing the anonymization state of each cell and the complete information on the dimensional variables that have defined the table that has been protected (slot dimInfo). Also, the number of non-duplicated table cells (slot nrNonDuplicatedCells) is returned along with the number of primary (slot nrPrimSupps) and secondary (slot nrSecondSupps) suppressions. Furthermore, the number of cells that can be published (slot nrPublishableCells), the algorithm that has been used to protect the data (slot suppMethod) and the time that was needed to protect the data structure (slot elapsedTime) is returned.

Details

slot finalData:

a data.frame (or NULL) featuring columns for each variable defining the table (with their original codes), the cell counts and values of any numerical variables and the anonymization status for each cell with

• s, z: cell can be published

• u: cell is a primary sensitive cell

• x: cell was selected as a secondary suppression

slot dimInfo:

an object of class dimInfo-class holding all information on variables defining the table

slot nrNonDuplicatedCells:

numeric vector of length 1 (or NULL) showing the number of non-duplicated table cells. This value is different from 0 if any dimensional variable features duplicated codes. These codes have been re-added to the final dataset.

slot nrPrimSupps:

numeric vector of length 1 (or NULL) showing the number of primary suppressed cells

slot nrSecondSupps:

numeric vector of length 1 (or NULL) showing the number of secondary suppressions

slot nrPublishableCells:

numeric vector of length 1 (or NULL) showing the number of cells that may be published

slot suppMethod:

character vector of length 1 holding information on the protection method

slot elapsedTime:

numeric vector of length 1 holding the time that was required to protect the table

Note

objects of class safeObj are returned after the function protectTable has finished.

Author(s)

Bernhard Meindl [e-mail]

bernhard-da/sdcTable documentation built on June 10, 2019, 4:54 a.m.