Version 2.0
o All code moved to package QCAGUI
Version 1.1-4
o Improved: documentation now includes Digital Object Identifier (DOI) links
to cited references or direct URL
o Renamed: all data sets renamed with more meaningful expressions (from author
abbreviation to topic keyword)
o Fixed: occasional errors when the causal conditions in the initial data used
both upper and lower case names
Version 1.1-3
o New: number of PIs processable by solveChart() now limited (maximum integer
number that can be treated by the machine)
o New: three data sets added (d.AS, d.HMN, d.Kil)
o Improved: documentation for various functions
o Changed: argument "all.sol" in function eqmcc() renamed to "min.dis"
o Changed: argument "inf.test" in eqmcc() placed before "use.tilde"
o Renamed: in output from various functions prefix "S" (solution) renamed to
"M" (model)
o Fixed: argument "neg.out" with curly bracket notation in argument "outcome"
to function eqmcc() not operative
o Fixed: matrix dimensions dropped in function getSolution()
o Fixed: case names assigned to incorrect PIs in function
demoChart() under some conditions (thanks to M. Vink)
o Fixed: very large pof() objects did not generate an error on print
o Fixed: more informative error message when the truth table did not contain
any explained values (thanks to M. Zulianello)
Version 1.1-2
o Fixed: missing data triggered an error message in function truthTable()
o Fixed: calibration of negative end-point concepts with logistic function
produced incorrect set membership scores (thanks to C. Schneider)
Version 1.1-1
o Improved: speed for resolution of PI chart
o Fixed: an error message was generated when fuzzy sets were not normalized
o Fixed: prime implicants were joined together for single-column PI charts
by function solveChart() instead of being identified as alternative solutions
o Fixed: PRI column did not print in truth tables when argument PRI = TRUE
Version 1.1-0
o New: functionality for analyzing path models with function eqmcc()
o New: function deMorgan() computes negations of set expressions
o New: functionality for multivalent outcome sets
o New: inference-statistical tests for truth table configurations
(currently only csQCA and mvQCA)
o New: additional values "sufnec" and "necsuf" to argument "relation" in
function superSubset()
o New: argument "row.dom" in function solveChart()
o Improved: documentation for function eqmcc()
o Improved: output structure of eqmcc() with respect to intermediate solutions
o Changed: default value to argument "row.dom" of function eqmcc() from TRUE
to FALSE
o Changed: argument "row.dom" works independently of argument "all.sol" in
function eqmcc()
o Renamed: arguments "rowdom" and "direxp" in function eqmcc() to "row.dom"
and "dir.exp"
o Renamed: values "necessity" (now "nec") and "sufficiency" (now "suf") to
argument "relation" in function superSubset()
o Dropped: function readTosmana()
o Fixed: when number of solutions was large, printing was not optimal
o Fixed: printing of column names (thanks to A. Sevilla)
o Fixed: when providing directional expectations, empty "SA" components caused error
o Fixed: sometimes redundant solutions were produced when "all.sol = TRUE"
Version 1.0-5
o Improved: version of C code for removing redundant PIs
o Improved: function pof() now also accepts outcome vector as well as a
name of the outcome set
o Improved: multiple solutions from function factorize() now numbered
o Improved: C code in view of upcoming R 3.0.0 version
o Changed: functions superSubset() and pof() now accept "suf" (along with
"sufficiency") and "nec" ("necessity")
Version 1.0-4
o New: argument "all.sol" for functions eqmcc() and solveChart() (thanks to
M. Baumgartner)
o Improved: speed for functions superSubset() and truthTable()
o Improved: function truthTable() now also calculates number of cases in
remainder configurations
o Renamed: arguments in function factorize()
o Fixed: in function eqmcc() condition names in uppercase letters were not
treated correctly (thanks to M. Baumgartner)
o Fixed: in function truthTable() case names were not assigned correctly
under some circumstances (thanks to M. Gasser)
Version 1.0-3
o Fixed: various printing issues
Version 1.0-2
o New: argument "neg.out" in functions truthTable() and eqmcc()
o Fixed: PRI scores for arguments "relation = "necessity"" and "neg.out = TRUE"
in function superSubset()
Version 1.0-1
o Fixed: printing of solutions with only one term was prevented
Version 1.0-0
o New: functions eqmcc() and truthTable() now able to process fuzzy sets
o New: function pof() computes parameters of fit for variety of input options
o New: function findTh() finds thresholds for crisp sets calibrations
o New: function calibrate() recodes base variables into crisp and fuzzy sets
o New: function superSubset() for analysing necessity and sufficiency relations
o New: logical argument "rowdom" in function eqmcc() controls application of
row dominance principle
o New: inclusion ("incl") and proportional reduction in inconsistency scores
("PRI")
o New: truth tables can now be sorted using argument "sort.by"
o New: function truthTable() now returns raw truth table with numerical columns
o New: printing methods for PI charts (objects of class "pic"), parameters
of fit (class "pof"), results from function superSubset() (class "ss"),
results from function allExpressions() (class "aE") and results from
factorization (class "fctr")
o Improved: function eqmcc() automatically determines conditions and outcome
when truth table object passed (object of class "tt")
o Changed: functions prettyTable() and createString() now internalized
o Renamed: function findPrimes() to findSubsets()
o Dropped: function qmcc() (fully replaced by function eqmcc())
o Dropped: truth table columns "freq0" and "freq1"
Version 0.6-5
o Improved: functions qmcc() and eqmcc() now also return (invisibly) PI chart
and initial configurations
Version 0.6-4
o Improved: functions qmcc() and eqmcc() now return invisible list with
following components: minimized PIs, number of k PIs necessary to cover
all initial causal combinations in PI chart, final solution(s)
o Changed: redundant code from function verify.data() removed
o Changed: error message on failure to solve PI chart (thanks to J. Jarvi)
Version 0.6-3
o Fixed: in function factorize(); matrix dropped dimensions
Version 0.6-2
o Improved: documentation and citations
o Improved: function findPrimes(); empty prime implicants eliminated (first
line in implicant matrix)
o Changed: function factorize(); argument "use.letters" replaced by "splitmethod"
o Fixed: in function findSubsets(); incorrect calculations for the case of
multi-value data
Version 0.6-1
o Improved: functions findPrimes() and findSubsets(); argument "noflevels"
must now be specified
o Changed: argument "uplow" in function eqmcc() now TRUE by default
o Fixed: incorrect multi-value minimization in function eqmcc() when remainders
excluded (thanks to D. Bol)
Version 0.6-0
o New: function eqmcc() now accepts multivalent data
o New: argument "uplow" in function eqmcc() for printing solutions in
upper/lower case letters
o New: artifical dataset "MV" to test multivalent data
o Improved: function findPrimes() to accommodate multivalent data
o Improved: function createString() to accommodate multivalent data
o Improved: function writePrimeimp() to accommodate multivalent data
o Improved: function prettyString() using native function strwrap()
o Improved: functions qmcc() and eqmcc() using new function prettyString()
o Changed: function demoChart(); argument "use.letters" replaced by
"splitmethod"
o Changed: function prettyString() now internalized
Version 0.5-4
o Dropped: error message when there is only one configuration to explain
(thanks to B. Monroe)
Version 0.5-3
o New: Function truthTable() now allows multivalent data in conditions
o Fixed: in function truthTable(); columns incorrectly arranged with respect
to outcome values
Version 0.5-2
o Fixed: function createMatrix() regarding multivalent data
o Fixed: function solveChart(); error when PI chart was too large
Version 0.5-1
o Improved: function descriptions
o Changed: functions is.tt() and print.tt() now accessible to user
o Fixed: function rowDominance2(); matrix dropped dimensions
o Fixed: function eqmcc() for complete truth tables (thanks to R. Huang)
Version 0.5-0
o Function truthTable() now returns object of class "tt"
o New: internal functions is.tt() and print.tt()
o Improved: functions qmcc() and eqmcc() now accept truth tables or raw data
Version 0.4-9
o Improved: function factorize(); previous version did not detect some
combinations
o Changed: functions findPrimes() and findSubsets() now at user level
Version 0.4-8
o New: internal function findPrimes()
Version 0.4-7
o New: internal function findSubsets()
o Improved: function eqmcc()
o Improved: function truthTable()
o Fixed: function rowDominance2()
Version 0.4-6
o Improved: eqmcc() now at least twice as fast
o Changed: function rowDominance2()
o Renamed: function shortqca() to eqmcc()
Version 0.4-5
o New: experimental function shortqca(); many times faster than qmcc() for
large number of conditions (> 11) and very low memory consumption;
works with 16 or 17 conditions
Version 0.4-3
o Fixed: in function qmcc() matrix dropped dimensions upon subsetting
Version 0.4-2
o New: argument "use.letters" to function demoChart()
o Fixed: in function qmcc() data was subset incorrectly
o Fixed: in function qmcc() involving argument "show.cases"
o Fixed: function verify.truthTable()
Version 0.4-1
o New: namespace for "QCA" package
o New: argument "diffmat" to function qmcc(); users can now choose to
generate difference matrix or not: speed or low memory consumption
o Improved: function base3rows() now faster
o Improved: function createMatrix() now faster for same number of values in
each condition
Version 0.4-0
o New: function base3rows()
o Improved: function qmcc(); lower memory consumption;
now works with up to 15 conditions in 1GB RAM
o Fixed: function writeSolution()
Version 0.3-5
o Improved: function qmcc(); does no longer possess argument "tt";
now works with up to 13 conditions
o Changed: function truthTable()
Version 0.3-1
o New: function rowDominance() facilitates solving of large prime implicant
charts
Version 0.3-0
o New: function getRow() returns combination of levels for specific row numbers
o New: function createMatrix() now accepts multi-value sets
o Improved: function qmcc() now 20 times faster
o Changed: function createChart() redesigned and internalized
o Renamed: function createChart() to demoChart()
o Fixed: various problems caused by changes in version 0.2-6
Version 0.2-6
o New: "QCA" package does not depend on package "cluster" any more
Version 0.2-5
o New: "QCA" package no longer depends on package "combinat"
o New: function sortMatrix() in internal functions
o New: argument verifications now part of internal functions
o New: function readTosmana() for reading Tosmana type XML data files
o Improved: documentation for many functions
o Changed: function prettyTable()
o Changed: minor parts in function truthTable()
Version 0.2-2
o New: internal functions; function qmcc() now less cluttered
o New: user-level function solveChart(); pulled out of function qmcc()
o Improved: allExpressions() now faster
o Renamed: function allExpr() now allExpressions()
Version 0.2-1
o New: function createMatrix() creates base matrix for truth tables
o New: function base3rows()
o Fixed: in function writeSolution()
Version 0.2-0
o New: function factorize() finds all common factors in Boolean products