1 files changed, 7 insertions, 1 deletions
diff --git a/lazar.rb b/lazar.rb
index f2634ab..7edbb97 100644
--- a/lazar.rb
+++ b/lazar.rb
@@ -106,7 +106,13 @@ post '/lazar/?' do
 
     # Propositionalization
     propositionalized = false
-    propositionalized = true if (params[:propositionalized] != "false" && ( params[:prediction_algorithm] == "local_mlr_prop" || params[:prediction_algorithm].include? "local_svm" ) )
+    propositionalized = true if ( params[:propositionalized] != "false" && 
+                                   ( params[:prediction_algorithm] == "local_mlr_prop" || 
+                                     ( params[:prediction_algorithm] && 
+                                       params[:prediction_algorithm].include?("local_svm") 
+                                     )
+                                   ) 
+                                )
    
     # PC type
     pc_type = params[:pc_type] unless params[:pc_type].nil?