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-rw-r--r--lib/algorithm.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/algorithm.rb b/lib/algorithm.rb
index cae94aa..c3a5c80 100644
--- a/lib/algorithm.rb
+++ b/lib/algorithm.rb
@@ -125,6 +125,7 @@ module OpenTox
else
if @prediction_feature.feature_type == "classification"
activity= value_map.invert[value].to_i # activities are mapped to 1..n
+ raise "activity should be mapped to 1..n is 0, for value '#{value}', value_map: #{value_map.inspect}" if activity==0
@db_class_sizes[activity-1].nil? ? @db_class_sizes[activity-1]=1 : @db_class_sizes[activity-1]+=1 # AM effect
elsif @prediction_feature.feature_type == "regression"
activity= value.to_f