[R-pkgs] new package QCA

Adrian DUSA adi at roda.ro
Tue Feb 7 17:09:02 CET 2006

Dear list members,

I am pleased to let you know that R met with QCA - Qualitative Comparative 
This package has a few functions that implement the Quine-McCluskey algorithm, 
adapted to social sciences by Charles Ragin (as describes in his book from 
1987 "The Comparative Method").
Future versions of this package will have more functions to address the 
fuzzy-set minimization problems, as well.

Big thanks to the r-help list members, supportive as ever, especially to Gabor 
Grothendieck and Martin Maechler for excellent ideas in the key parts of the 

Adrian DUSA
Romanian Social Data Archive
1, Schitu Magureanu Bd
050025 Bucharest sector 5
Tel./Fax: +40 21 3126618 \
          +40 21 3120210 / int.101

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