3 is just the initial capacity; as you add elements, the array grows automatically:
http://download.oracle.com/javase/6/docs/api/java/util/ArrayList.html -- View this message in context: http://lucene.472066.n3.nabble.com/Evaluation-approach-in-AbstractDifferenceRecommenderEvaluator-tp1571032p1571402.html Sent from the Mahout User List mailing list archive at Nabble.com.
