1 files changed, 1 insertions, 7 deletions
diff --git a/lib/feature.rb b/lib/feature.rb
index a308a55..21572ca 100644
--- a/lib/feature.rb
+++ b/lib/feature.rb
@@ -5,6 +5,7 @@ module OpenTox
     field :nominal, type: Boolean
     field :numeric, type: Boolean
     field :measured, type: Boolean
+    field :calculated, type: Boolean
   end
 
   # Feature for categorical variables
@@ -42,13 +43,6 @@ module OpenTox
     field :dataset_id 
   end
 
-  # Feature for physico-chemical descriptors
-  class PhysChemDescriptor < NumericFeature
-    field :algorithm, type: String, default: "OpenTox::Algorithm::Descriptor.physchem"
-    field :parameters, type: Hash
-    field :creator, type: String
-  end
-
   # Feature for categorical bioassay results
   class NominalBioAssay < NominalFeature
   end