Create Constraints for Small Test Assembly Problems
Constrain the sum of item values across multiple forms.
Analyze block exclusiveness
Analyze complex block exclusiveness
Append a useSolver output
Create single value constraints with minimum and maximum.
Calculate Item Information Function
Capped Maximin Constraint.
Combine constraints
Compute target values based on the item pool.
Use complete item pool.
Convert dummy variables to factor.
Calculate Cumulants Lognormal Response Time Distribution
Calculate Cumulants Lognormal Response Time Distribution
Inspect a useSolver output
Create item category constraints.
Create item category constraints with minimum and maximum.
Create item inclusion or exclusion constraints.
Create number of items per test form constraints.
Create item tuples.
Create item usage constraints.
Constrain the sum of item values per form.
Create single value constraints with minimum and maximum.
Create item exclusion tuples from matrix.
Maximin Constraint.
Max Constraint.
Minimax Constraint.
Min Constraint.
Create item inclusion tuples from item stem.
Use a solver for a list of constraints.
Provides simple functions to create constraints for small test assembly problems (e.g. van der Linden (2005, ISBN: 978-0-387-29054-6)) using sparse matrices. Currently, 'GLPK', 'lpSolve', 'Symphony', and 'Gurobi' are supported as solvers. The 'gurobi' package is not available from any mainstream repository; see <https://www.gurobi.com/downloads/>.