Artificial Responses from Doignon and Falmagne (1999)

Description

Fictitious data set from Doignon and Falmagne (1999, chap. 7). Response patterns of 1000 respondents to five problems. Each respondent is assumed to be in one of nine possible states of the knowledge structure K.

Usage

data(DoignonFalmagne7)

Format

A list consisting of two components:

K

a state-by-problem indicator matrix representing the hypothetical knowledge structure. An element is one if the problem is contained in the state, and else zero.

N.R

a named numeric vector. The names denote response patterns, the values denote their frequencies.

Source

Doignon, J.-P., & Falmagne, J.-C. (1999). Knowledge spaces. Berlin: Springer.

Examples

library("pks")

data(DoignonFalmagne7)
DoignonFalmagne7$K    # knowledge structure

      a b c d e
00000 0 0 0 0 0
10000 1 0 0 0 0
01000 0 1 0 0 0
11000 1 1 0 0 0
11100 1 1 1 0 0
11010 1 1 0 1 0
11110 1 1 1 1 0
11101 1 1 1 0 1
11111 1 1 1 1 1

DoignonFalmagne7$N.R  # response patterns

00000 10000 01000 00100 00010 00001 11000 10100 10010 10001 01100 01010 01001 
   80    92    89     3     2     1    89    16    18    10    18    20     4 
00110 00101 00011 11100 11010 11001 10110 10101 10011 01110 01101 01011 00111 
    2     2     3    89    89    19    16    16     3    18    16     2     2 
11110 11101 11011 10111 01111 11111 
   73    82    19    15    15    77