Learn R Programming
sdcTable (version 0.32.2)

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

Description

query problemInstance-objects depending on argument type

Usage

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

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'

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

Author

Bernhard Meindl bernhard.meindl@statistik.gv.at