eatATA1.1.2 package

Create Constraints for Small Test Assembly Problems

acrossFormsConstraint

Constrain the sum of item values across multiple forms.

analyzeBlockExclusion

Analyze block exclusiveness

analyzeComplexBlockExclusion

Analyze complex block exclusiveness

appendSolution

Append a useSolver output

autoItemValuesMinMaxConstraint

Create single value constraints with minimum and maximum.

calculateIIF

Calculate Item Information Function

cappedMaximinObjective

Capped Maximin Constraint.

combineConstraints

Combine constraints

computeTargetValues

Compute target values based on the item pool.

depletePoolConstraint

Use complete item pool.

dummiesToFactor

Convert dummy variables to factor.

get_mean_3PLN

Calculate Cumulants Lognormal Response Time Distribution

getMean3PLN

Calculate Cumulants Lognormal Response Time Distribution

inspectSolution

Inspect a useSolver output

itemCategoryConstraint

Create item category constraints.

itemCategoryRangeConstraint

Create item category constraints with minimum and maximum.

itemExclusionConstraint

Create item inclusion or exclusion constraints.

itemsPerFormConstraint

Create number of items per test form constraints.

itemTuples

Create item tuples.

itemUsageConstraint

Create item usage constraints.

itemValuesConstraint

Constrain the sum of item values per form.

itemValuesRangeConstraint

Create single value constraints with minimum and maximum.

matrixExclusionTuples

Create item exclusion tuples from matrix.

maximinObjective

Maximin Constraint.

maxObjective

Max Constraint.

minimaxObjective

Minimax Constraint.

minObjective

Min Constraint.

stemInclusionTuples

Create item inclusion tuples from item stem.

useSolver

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/>.