alpha {ACTCD}

All possible attribute patterns

Description

This function is used to generate all possible attribute patterns given the number of attributes.

Usage

alpha(K)

Arguments

K

The number of attributes.

Value

A 2^K \times K binary matrix is returned, 1 representing mastery of the attributes and 0 representing non-mastery of the attributes.

See Also

eta

Examples

# Generate all possible attribute patterns given the number of attributes, K.
K <- 3
A3 <- alpha(K)
K <- 4
A4 <- alpha(K)