This fuzzy dataset is an adaptation from Ragin (2005, 2008), the data itself being attributed to Nieuwbeerta (1995).
data(NF)
A data frame containing 12 cases (countries) and the following 5 columns:
A | degree of membership in the set of highly affluent countries |
I | degree of membership in the set of countries with substantial levels of income inequality |
M | degree of membership in the set of countries with a high percentage of workers employed |
in manufacturing | |
U | degree of membership in the set of countries with strong unions |
W | outcome: degree of membership in the set of countries with weak class voting |
All fuzzy sets in this data are constructed on a six-values scale, for demonstrative purposes.
In the original dataset, the outcome W
is presented as the first column.
Nieuwbeerta, P. (1995) The Democratic Class Struggle in Twenty Countries: 1945:1990. Amsterdam: Thesis Publishers.
Ragin, C.C. (2005) “From fuzzy sets to crisp truth tables”. WP 2004-28, COMPASSS Working Papers series.
Ragin, C.C. (2008) Redesigning Social Inquiry: Fuzzy Sets and Beyond. Chicago: University of Chicago Press.