getter

Author: ppavlidis

src/ubic/basecode/math/linearmodels/DesignMatrix.java

@@ -65,6 +65,15 @@ public class DesignMatrix {
 
     private final Set<String[]> interactions = new LinkedHashSet<>();
 
+    /**
+     * 
+     * @return a collection of String arrays. If empty, there are no interactions. Each array represents an interaction
+     *         in the model. The elements of the array are the terms included in the interaction, as Strings provided when calling addInteraction.
+     */
+    public Collection<String[]> getInteractionTerms() {
+        return interactions;
+    }
+
     /**
      * Only applied for categorical factors.
      */