usage in Evaluation.scala
diff --git a/src/main/scala/Evaluation.scala b/src/main/scala/Evaluation.scala
index f744677..428fb8e 100644
--- a/src/main/scala/Evaluation.scala
+++ b/src/main/scala/Evaluation.scala
@@ -10,7 +10,7 @@
// Usage:
// $ pio eval org.template.recommendation.RecommendationEvaluation \
-// org.template.recommendation.ParamsList
+// org.template.recommendation.EngineParamsList
case class PrecisionAtK(k: Int, ratingThreshold: Double = 2.0)
extends OptionAverageMetric[EmptyEvaluationInfo, Query, PredictedResult, ActualResult] {