Generate a Random Identifiable Q Matrix

Simulates a Q matrix containing three identity matrices after a row permutation that is identifiable.

sim_q_matrix(J, K)

Arguments

J

Number of Items

K

Number of Attributes

Value

A dichotomous matrix for Q.

See also

attribute_bijection() and attribute_inv_bijection()

Author

Steven Andrew Culpepper and James Joseph Balamuta

Examples

## Simulate identifiable Q matrices ----

# 7 items and 2 attributes
q_matrix_j7_k2 = sim_q_matrix(7, 2)

# 10 items and 3 attributes
q_matrix_j10_k3 = sim_q_matrix(10, 3)