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QCA (version 0.6-3)

Qualitative Comparative Analysis

Description

Performs the Quine-McCluskey algorithm for Qualitative Comparative Analysis, both for bvQCA (binary-value QCA) and for mvQCA (multi-value QCA). In the classical approach it currently handles about 15 conditions and one outcome for binary data only, but since version 0.4-5 the package has an enhanced, faster function that obtains the same exact solutions with a substantially lower memory consumption, it handles even more causal conditions and it can be used for mvQCA as well. The next versions of this algorithm will be oriented towards fuzzy-set functions. Also, in the near future the current functions will deal with missing values in the data

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Version

Install

install.packages('QCA')

Monthly Downloads

3,227

Version

0.6-3

License

GPL (>= 2)

Maintainer

Adrian Dusa

Last Published

October 11th, 2009

Functions in QCA (0.6-3)

Ebbinghaus

Union Growth and Decline in Western Europe 1950-95
QCA-internal

Internal Functions
Stokke

Causal mechanisms and regime effectiveness
Osa

Political Opportunity in Non-democracies
Rokkan

Divided Working-Class Movements
findSubsets

Find all possible subsets of a given prime implicant
createString

Create a vector of strings containing combinations of presence/absence of conditions
demoChart

Create the prime implicants chart
factorize

Factorize a QCA solution
dozen12

Random data with 12 conditions and 1 outcome
big10

Random data with 10 conditions and 1 outcome
truthTable

Truth table
readTosmana

Read Tosmana XML data file
solveChart

Reduce the redundant prime implicants
MV

Random Multi-Value data with 4 causal conditions and 1 outcome
eqmcc

Enhanced Quine-McCluskey algorithm
Yamasaki

The problem of contradictory simplifying assumptions
createMatrix

Create a base matrix for the truth table
prettyTable

Print a nicely formatted matrix or truth table
allExpressions

Create a matrix with all possible combinations of conditions
MI.15

Random data with 15 conditions and 1 outcome
getRow

Get a specific row from a truth table
qmcc

Find a minimum solution in a boolean procedure, using the Quine-McCluskey algorithm
even11

Random data with 11 conditions and 1 outcome
mighty14

Random data with 14 conditions and 1 outcome
lucky13

Random data with 13 conditions and 1 outcome
findPrimes

Find all possible prime implicants of one or several combinations of causal conditions
QCA-package

Qualitative Comparative Analysis