get.problemInstance-method: query 'problemInstance'-objects depending on argument 'type'

In sdcTable: Methods for Statistical Disclosure Control in Tabular Data

query problemInstance-objects depending on argument type

Description

query problemInstance-objects depending on argument type

Usage

get.problemInstance(object, type)

## S4 method for signature 'problemInstance,character'
get.problemInstance(object, type)

Arguments

object	an object of class problemInstance
type	a character vector of length 1 defining what to calculate|return|modify. Allowed types are:

• strID: vector of unique IDs for each table cell

• nrVars: total number of table cells

• freq: vector of frequencies

• w: a vector of weights used in the linear problem (or NULL)

• numVars: a list containing numeric vectors containing values for numerical variables for each table cell (or NULL)

• sdcStatus: a vector containing the suppression state for each cell (possible values are 'u': primary suppression, 'x': secondary suppression, 'z': forced for publication, 's': publishable cell, 'w': dummy cells that are considered only when applying the simple greedy heuristic to protect the table)

• lb: lower bound assumed to be known by attackers for each table cell

• ub: upper bound assumed to be known by attackers for each table cell

• LPL: lower protection level required to protect table cells

• UPL: upper protection level required to protect table cells

• SPL: sliding protection level required to protect table cells

• primSupps: vector of indices of primary sensitive cells

• secondSupps: vector of indices of secondary suppressed cells

• forcedCells: vector of indices of cells that must not be suppressed

• hasPrimSupps: shows if object has primary suppressions or not

• hasSecondSupps: shows if object has secondary suppressions or not

• hasForcedCells: shows if object has cells that must not be suppressed

• weight: gives weight that is used the suppression procedures

• suppPattern: gives the current suppression pattern

Value

information from objects of class dataObj depending on argument type

• a list (or NULL) if argument type matches 'numVars'

• numeric vector if argument type matches 'freq', 'lb', 'ub', 'LPL', 'UPL', 'SPL', 'weight', 'suppPattern'

• numeric vector (or NULL) if argument type matches 'w', 'primSupps', 'secondSupps', 'forcedCells'

• character vector if argument type matches 'strID', 'sdcStatus', ”

• logical vector of length 1 if argument type matches 'hasPrimSupps', 'hasSecondSupps', 'hasForcedCells'

• numerical vector of length 1 if argument type matches 'nrVars'

Note

internal function

Author(s)

Bernhard Meindl [e-mail]

sdcTable documentation built on Aug. 11, 2023, 9:06 a.m.