# alpha: All possible attribute patterns In ACTCD: Asymptotic Classification Theory for Cognitive Diagnosis

## Description

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

## Usage

 1 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.

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 1 2 3 4 5 # Generate all possible attribute patterns given the number of attributes, K. K <- 3 A3 <- alpha(K) K <- 4 A4 <- alpha(K)