An extensive set of functions to perform Qualitative Comparative Analysis:
crisp sets ('csQCA'), temporal ('tQCA'), multi-value ('mvQCA')
and fuzzy sets ('fsQCA'), using a GUI - graphical user interface.
'QCA' is a methodology that bridges the qualitative and quantitative
divide in social science research. It uses a Boolean minimization
algorithm, resulting in a minimal causal configuration associated
with a given phenomenon.