qca_extract: Extract solution information from a QCA minimization result

In TSQCA: Threshold Sweep Extensions for Qualitative Comparative Analysis

Extract solution information from a QCA minimization result

Description

Internal helper to obtain the solution expression, consistency (inclS) and coverage (covS) from an object returned by QCA::minimize().

Usage

qca_extract(sol, extract_mode = c("first", "all", "essential"))

Arguments

sol	A solution object returned by QCA::minimize().
extract_mode	Character. How to handle multiple intermediate solutions: "first" - return only the first solution (M1). Default. "all" - return all solutions concatenated. "essential" - return essential prime implicants (terms common to all solutions), plus selective prime implicants and solution count.

Value

A list with elements depending on extract_mode.

For "first": expression, inclS, covS.

For "all": adds n_solutions.

For "essential": adds selective_terms, unique_terms, n_solutions.

If extraction fails, returns "No solution" and NA_real_ for numeric values.

TSQCA documentation built on Feb. 18, 2026, 5:06 p.m.