--- a/c/Parameters.cpp	Wed Dec 07 18:51:32 2011 -0500
+++ b/c/Parameters.cpp	Thu Dec 08 18:32:35 2011 -0500
@@ -55,7 +55,7 @@
     ("mm-segmentation-distance", po::value<float>(&mmSegmentationDistance), "segmentation distance in feature grouping")
     ("max-distance", po::value<float>(&maxDistance), "maximum distance between features for grouping")
     ("min-velocity-cosine", po::value<float>(&minVelocityCosine), "minimum cosine of the angle between the velocity vectors for grouping")
-    ("min-nfeatures-group", po::value<int>(&minNFeaturesPerGroup), "minimum average number of features per frame to create a vehicle hypothesis")
+    ("min-nfeatures-group", po::value<float>(&minNFeaturesPerGroup), "minimum average number of features per frame to create a vehicle hypothesis")
     ;
     // ("max-uturn-cosine", po::value<float>(&maxUTurnCosine), "maximum cosine value to detect U-turn")
     // ("nframes-avoid-uturn", po::value<int>(&nFramesAvoidUTurn), "number of frames over which a feature should not make a U-turn")