createMatrix {QCA} | R Documentation |
The truth table consists from all combinations of presence/absence of conditions (coded binary 1/0). There are 2^k such combinations and this function should be among the fastests to create this matrix, using ideas inspired from expand.grid
createMatrix(noflevels)
noflevels |
a vector containing the number of levels for each variable in the dataset |
Adrian Dusa
Romanian Social Data Archive, University of Bucharest
adi@roda.ro
Ragin, Charles C. 1987 The Comparative Method. Moving beyond qualitative and quantitative strategies, Berkeley: University of California Press
'truthTable'
# create a binary matrix based on 3 conditions createMatrix(rep(2, 3)) # create a matrix based on 3 conditions where the second has three levels createMatrix(c(2, 3, 2)) # the matrix has 2*3*2 = 12 rows