![]() If the user does not define an adjacency matrix, the default is method dependent. It is always relevant for discrete_design_set string variables. The adjacency_matrix keyword is only relevant for discrete_design_set real and discrete_design_set integer variables if one or more of them have been specified to be categorical. The matrices for all variables of the same type ( string, real, or integer) are entered sequentially as a list of integers as shown in the examples below. Entry of a matrix should be 1 if level and level are related by some subjective criteria or if it should be 0 otherwise. Each such variable is associated with one symmetric matrix, where is the number of values (or levels) of the variable. The adjacency_matrix keyword is associated with discrete_design_set variables that are specified to be categorical. 1-0 matrix defining which categorical variable levels are related.
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