--- a/c/Parameters.cpp	Thu Jun 27 00:25:51 2013 -0400
+++ b/c/Parameters.cpp	Thu Jun 27 01:35:47 2013 -0400
@@ -63,6 +63,7 @@
     ("prediction-time-horizon", po::value<float>(&predictionTimeHorizon)->default_value(5.), "time horizon for collision prediction (s)")
     ("collision-distance", po::value<float>(&collisionDistance)->default_value(1.8), "collision distance threshold (m)")
     ("crossing-zones", po::value<bool>(&crossingZones)->default_value(false), "option to compute crossing zones and predicted PET")
+    ("prediction-method", po::value<string>(&predictionMethod)->default_value("na"), "prediction method")
     ("npredicted-trajectories", po::value<int>(&nPredictedTrajectories)->default_value(1), "number of predicted trajectories (use depends on prediction method)")
     ("min-acceleration", po::value<float>(&minAcceleration)->default_value(-9.1), "minimum acceleration for input distribution (m/s2) (used only for evasive action distributions)")
     ("max-acceleration", po::value<float>(&maxAcceleration)->default_value(2.), "maximum acceleration for input distribution (m/s2)")