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QCA (version 0.1-1)

Qualitative Comparative Analysis

Description

Performs the Quine-McCluskey algorithm for Qualitative Comparative Analysis, as described in Ragin, Charles C. 1987 "The Comparative Method. Moving beyond qualitative and quantitative strategies", Berkeley: University of California Press. It currently handles about 8 conditions and one outcome. While theoretically it could handle more conditions, it requires a lot of computer resources and is memory hungry; future versions will have more functions to address this problem, as well as functions for fuzzy-set QCA. The package doesn't currently handle missing values in the data, therefore it is not yet possible to perform simplifying assumptions

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Version

Install

install.packages('QCA')

Monthly Downloads

3,227

Version

0.1-1

License

GPL version 2 or newer

Maintainer

Adrian Dusa

Last Published

December 4th, 2024

Functions in QCA (0.1-1)

create.chart

Create the prime implicants chart
Stokke

Causal mechanisms and regime effectiveness
create.string

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

Divided Working-Class Movements
qmcc

Find a minimum solution in a boolean procedure, using the Quine-McCluskey algorithm
all.expr

Create a matrix with all possible combinations of conditions
truth.table

Create a truth table for crisp sets
QCA-package

Qualitative Comparative Analysis
pretty.table

Print a nicely formatted matrix or truth table
pretty.string

Separate a very long vector of strings on several rows
Yamasaki

The problem of contradictory simplifying assumptions
Osa

Political Opportunity in Non-democracies
Ebbinghaus

Union Growth and Decline in Western Europe 1950-95
prettyString

Separate a very long vector of strings on several rows
createString

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

Print a nicely formatted matrix or truth table
allExpr

Create a matrix with all possible combinations of conditions
truthTable

Create a truth table for crisp sets
createChart

Create the prime implicants chart