Calculates the constraint values and violations when only unitary constraints (i.e., the sum of all variables equals one) are present.

unitary_constraints(X, epsilon = 0, ...)

Arguments

X

Population matrix of the MOEA/D (each row is a candidate solution). If NULL the function searches for X in the calling environment.

epsilon

small non-negative value indicating the tolerance to be considered for the equality constraint. Defaults to zero.

...

other parameters (unused, included for compatibility with generic call)

Value

List objective containing a matrix of constraint values Cmatrix, a matrix of individual constraint violations Vmatrix, and a vector of total constraint violations v.

Details

This routine calculates the constraint values and violations for a population matrix in the MOEA/D. Each row of the matrix is considered as a candidate solution. This routine expects the candidate solutions to be standardized, i.e., that the variable limits given in problem$xmin and problem$xmax are mapped to 0 and 1, respectively.