swr: Relation between variables Sailing delay (S), Weather at sea (W), and Repairs at sea (R)This dataset is the tt matrix establishing a relation between S, W and R, where S = 0:3, W = (foul, fair) and R = (true, false). The goal of this relation is to account for other causes of sailing delay. All the elements (s,w,r) of (S x W x R) where W or R is true add one day of sailing delay. We put a mass value of 0.9 to this subset. The remaining mass of 0.1 is allotted to the frame.
swrAn integer matrix with 6 rows and 10 columns.
value = 0, not used
Identification numbers of the three variables. Column 3 to 6: variable 3; columns 7,8: variable 7, columns 9,10: variable 8
identification number of the specification
the value of the specification, a number between 0 and 1
1 if 3 is part of the specification, 0 otherwise
1 if 2 is part of the specification, 0 otherwise
1 if 1 is part of the specification, 0 otherwise
1 if 0 is part of the specification, 0 otherwise
1 if foul is part of the specification, 0 otherwise
1 if fair is part of the specification, 0 otherwise
1 if true is part of the specification, 0 otherwise
1 if false is part of the specification, 0 otherwise
Claude Boivin, Stat.ASSQ
To construct the tt matrix, we put the variables S, W, R side by side, as in a truth table representation. Each triplet of the subset is described by a row of the matrix as a vector of zeros and ones.