single tests pass

4 files changed, 4 insertions, 9 deletions

diff --git a/lib/lazar.rb b/lib/lazar.rb
index 0125d27..b4293e9 100644
--- a/lib/lazar.rb
+++ b/lib/lazar.rb
@@ -86,4 +86,4 @@ CLASSES = ["Feature","Compound","Dataset","Validation","CrossValidation","LeaveO
   "leave-one-out-validation.rb",
   "experiment.rb",
 ].each{ |f| require_relative f }
-
+OpenTox::PhysChem.descriptors # load descriptor features
diff --git a/lib/model.rb b/lib/model.rb
index f21ea54..5da5dc8 100644
--- a/lib/model.rb
+++ b/lib/model.rb
@@ -66,6 +66,7 @@ module OpenTox
           prediction.merge!({:value => nil,:confidence => nil,:warning => "Could not find similar compounds with experimental data in the training dataset."})
         else
           prediction.merge!(Algorithm.run(prediction_algorithm, compound, {:neighbors => neighbors,:training_dataset_id=> training_dataset_id,:prediction_feature_id => prediction_feature.id}))
+          prediction[:neighbors] = neighbors
         end
         prediction
       end
@@ -95,7 +96,7 @@ module OpenTox
         case object.class.to_s
         when "OpenTox::Compound"
           prediction = predictions.first
-          prediction[:neighbors] = neighbors.sort{|a,b| b[1] <=> a[1]} # sort according to similarity
+          prediction[:neighbors].sort!{|a,b| b[1] <=> a[1]} # sort according to similarity
           return prediction
         when "Array"
           return predictions
diff --git a/lib/physchem.rb b/lib/physchem.rb
index 067cd59..f7b880f 100644
--- a/lib/physchem.rb
+++ b/lib/physchem.rb
@@ -37,15 +37,9 @@ module OpenTox
 
     DESCRIPTORS = OBDESCRIPTORS.merge(CDKDESCRIPTORS.merge(JOELIBDESCRIPTORS))
 
-    DESCRIPTORS.each do |name,description|
-      lib,desc = name.split('.',2)
-      self.find_or_create_by(:name => name, :library => lib, :descriptor => desc, :description => description, :measured => false, :calculated => true, :numeric => true, :nominal => false)
-    end
-
     require_relative "unique_descriptors.rb"
 
     def self.descriptors desc=DESCRIPTORS
-      # TODO create PhysChem features @startup
       desc.collect do |name,description|
         lib,desc = name.split('.',2)
         self.find_or_create_by(:name => name, :library => lib, :descriptor => desc, :description => description, :measured => false, :calculated => true, :numeric => true, :nominal => false)
diff --git a/lib/regression.rb b/lib/regression.rb
index b8efd30..6b08fd8 100644
--- a/lib/regression.rb
+++ b/lib/regression.rb
@@ -62,7 +62,7 @@ module OpenTox
         else
           compound_features = variables.collect{|f| compound.fingerprint.include?(f) ? "T" : "F"} 
           prediction = r_model_prediction method, data_frame, variables, weights, compound_features
-          if prediction.nil?
+          if prediction.nil? or prediction[:value].nil?
             prediction = local_weighted_average(compound, params)
             prediction[:warning] = "Could not create local PLS model. Using weighted average of similar compounds."
             return prediction