Add function to file solution.jl

jMetal · Jan 12, 2024 · 34016ce · 34016ce
1 parent 9546b5a
commit 34016ce
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diff --git a/examples/NSGAIIExampleWithExternalCrowdingDistanceArchive.jl b/examples/NSGAIIExampleWithExternalCrowdingDistanceArchive.jl
@@ -10,7 +10,7 @@ using Dates
 
 # NSGA-II algorithm configured from the evolutionary algorithm template. It incorporates an external archive to store the non-dominated solution found. This archive will be the algorithm output.
 
-problem = zdt3Problem()
+problem = zdt2Problem()
 
 solver::EvolutionaryAlgorithm = EvolutionaryAlgorithm()
 solver.name = "NSGA-II"

diff --git a/notebooks/NSGA-II notebook.ipynb b/notebooks/NSGA-II notebook.ipynb
diff --git a/notebooks/NSGA-II with external archive.ipynb b/notebooks/NSGA-II with external archive.ipynb
diff --git a/src/core.jl b/src/core.jl
@@ -1,4 +1,4 @@
-# Core structs
+# Core types
 
 abstract type Solution end
 abstract type Problem{T} end

diff --git a/src/solution.jl b/src/solution.jl
@@ -125,4 +125,11 @@ end
 
 function isFeasible(solution::S) where {S<:Solution}
     return numberOfViolatedConstraints(solution) == 0
+end
+
+function feasibilityRatio(solutions::Vector{S})::Real where {S <: Solution}
+    @assert length(solutions) > 0 "The solution list is empty"
+
+    result = sum(filter(solution -> isFeasible(solution), solutions))
+    return result / length(solutions)
 end