Constructs a linear Scalarizer, which performs linear scalarization for ScalorFixedProjection.
scalarizer_linear()a Scalarizer object.
Other Scalarizers:
Scalarizer,
scalarizer_chebyshev()
# fitnesses: three rows (i.e. thee indivs) with two objective values each
fitnesses <- matrix(0:5, ncol = 2)
# weights: contains one matrix for each row of 'fitnesses' (i.e. each indiv)
# which get multiplied with their respective row.
weights <- list(
matrix(c(1, 0, 0, 1), ncol = 2),
matrix(c(1, 2, 0, 0), ncol = 2),
matrix(c(0, 1, 0, 1), ncol = 2)
)
sc <- scalarizer_linear()
# The resulting row-vectors are the different scalarizations according to the
# columns in the 'weights' matrices.
sc(fitnesses, weights)
#> [,1] [,2]
#> [1,] 0 3
#> [2,] 9 0
#> [3,] 5 5