From c2b6607d188105a320635e5111655671dba96cb4 Mon Sep 17 00:00:00 2001
From: Varun Agrawal <varagrawal@gmail.com>
Date: Wed, 9 Oct 2019 15:46:24 -0400
Subject: [PATCH] add residual function for Fair mEstimator wrapper

---
 gtsam.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gtsam.h b/gtsam.h
index 09b5b59e6..c9364d9b0 100644
--- a/gtsam.h
+++ b/gtsam.h
@@ -1375,6 +1375,7 @@ virtual class Fair: gtsam::noiseModel::mEstimator::Base {
   void serializable() const;
 
   double weight(double error) const;
+  double residual(double error) const;
 };
 
 virtual class Huber: gtsam::noiseModel::mEstimator::Base {