NEWS.md

sdcTable 0.32.2

• when applying dominance rules, empty cells (with frequency 0) are never marked primary sensitive
• do not overwrite pre-existing sensitive cells when applying a threshold rule after a dominance rule with allowZeros = FALSE
• when computing dominance rules using sampling weights it is ensured that weights are consistently rounded

sdcTable 0.32.1

• allow invocation of exact previous implementation of "SIMPLEHEURISTIC using method = "SIMPLEHEURISTIC_OLD" in protectTable()
• fix for edge-cases in "SIMPLEHEURISTIC": weights are temporarily changed for "z"-cells if no additional suppression can be detected
• combined existing functionality to compute constraint-matrix of a problem instance into (much faster) create_m_matrix()
  • replaced internal methods/functions c_gen_mat_m() and .gen_constraint_matrix() and genMatMFull()
• re-parametrized internal method c_make_att_prob

sdcTable 0.32.0

• rewrite of the "SIMPLEHEURISTIC approach
  • is based on (full) constraint matrix written using rcpp
  • rewritten the singleton-detection procedure with rcpp
  • by default attacker-problems are checked (in a loop) for primary sensitive cells and additional supps are added until all required cells are secure (fixes also issue #136, thx Øyvind Langsrud for reporting)
  • the previous (possible unsafe but faster) implemented method can be toggled using parameter solve_attackerprobs in protectTable and protectLinkedTable
• bugfix in internal method c_gen_mat_m with problems that have a single dimension
• dominance rules:
  • bugfix when computing rules on weighted data
  • allow nk-dominance rules with n=1 (thx @MaximeBeaute for reporting)
  • increased performance as contributing-units to cells are computed only once
• improved function attack()
  • problem-formulation and solution using the glpkAPI-package
  • can be used to attack all (suppressed) or specific cells
  • can also be used after computing a solution for the cell suppression problem
• performance improvements
  • c_quick_suppression() and attack() compute linear deps (.gen_contraint_matrix) only once
  • improvements in computation of contributing units to a cell (contributing_indices)
• new/updated functions/methods:
  • new function protect_linked_tables()
    • will replace protectLinkedTables() in the future (currently calls new function internally)
    • only allows the SIMPLEHEURISTIC algorithm
  • cell_info() replaces cellInfo() (defunct)
  • change_cellstatus() replaces changeCellStatus() (defunct)
  • new function createRegSDCInput() allows to compute input for e.g RegSDC::SuppressDec
  • removed S4-class definition safeObj and related methods
    • results are stored within sdcProblem-objects (in slot results)
    • rewritten getInfo() using an internal helper-function get_safeobj()
  • new function contributing_indices()
    • returns contributing units (from raw input data) to a cell
    • removed internal helper-function c_contributing_indices()
  • replaced internal S4-method c_cellID with utility-function cell_id()
• improved examples, documentation, test-data and unit-tests
  • improved and updated documentation getInfo() and setInfo()
  • replaced microData1.RData and microData2.RData
    • generation is reproducible in data-raw
    • data can be loaded using data(microdata1) and data(microdata2)
  • replaced problem.RData and problemWithSupps.RData with sdc_testproblem()
  • better document sdc-code z in primarySuppression()
  • improved and updated vignette (thx to @Krisselack for reporting)

sdcTable 0.31

• remove debugging output
• fixing typos in vignettes
• bugfix in protectLinkedTables()
• remove dependency on package lpSolveAPI
• update singleton-detection procedure by allowing to input a threshold value that must be respected for all simple table rows
• check dominance rules (unweighted variables are used)

sdcTable 0.30

• various fixes and improvements in createJJFormat()
• ignore sampling weights in case the input in makeProblem() is a complete table and not microdata
• sdcProb2df(): if numeric variables are shown; display their weighted values (in case) sampling weights have been specified in makeProblem

sdcTable 0.29

• change in primarySuppression(): for dominance rule it is now only possible to specify underlying variables by name (using argument numVarName) and no longer by index to avoid errors
• fixes in primary suppression for dominance rules
• create files from examples in tempdir()

sdcTable 0.28

• new function contributing_indices()
• call .Defunct for old exported functions
• make default bounds (ub, lb) depend on costs
• allow to specify numVarInd also by name via numVarName in primarySupression() for dominance rules (p, nk and pq)
• make use of sampling weights (by replicating) values for dominance rules.
• don't export unused functionality
• createJJFormat() and writeJJFormat() can be used to create text files with sdcProblems in "JJs Format"
• allow to specify variable names too in makeProblem

sdcTable 0.27

• use functionality from sdcHierarchies to build hierarchies. - removed create_node(); please use hier_create() instead
  • removed add_nodes(); please use hier_add() instead
  • removed delete_nodes(); please use hier_delete() instead
  • removed rename_nodes(); please use hier_rename() instead

sdcTable 0.26

• bugfix when computing indices for contributing units used in some primary suppression methods

sdcTable 0.25

• better error messages in case invalid hierarchies have been specified

sdcTable 0.24

• update in SIMPLEHEURISTIC-algorithm that now really respects cells (status "z") that must not be suppressed

sdcTable 0.23

• bugfix in SIMPLEHEURISTIC-algorithm
• code cleanup
• updated package vignette
• new functions create_node(), add_nodes() and delete_nodes() that allow a dynamic generation of hierarchies. For an example have a look at ?makeProblem

sdcTable 0.22.x

• Feature to create BATCH files suitable for tau-argus