From ae85b640a868b58ee9a5abcd4d0d979003dd2d97 Mon Sep 17 00:00:00 2001
From: yetongumich <yetong@umich.edu>
Date: Thu, 2 Apr 2020 11:04:31 -0400
Subject: [PATCH] re-add implemntation for deprecated Mahalanobis

---
 gtsam/linear/NoiseModel.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gtsam/linear/NoiseModel.h b/gtsam/linear/NoiseModel.h
index 7c3cb1294..4d86e77da 100644
--- a/gtsam/linear/NoiseModel.h
+++ b/gtsam/linear/NoiseModel.h
@@ -219,7 +219,9 @@ namespace gtsam {
       }
 
 #ifdef GTSAM_ALLOW_DEPRECATED_SINCE_V4
-      virtual double Mahalanobis(const Vector& v) const;
+      virtual double Mahalanobis(const Vector& v) const {
+        return squaredMahalanobisDistance(v);
+      }
 #endif
 
       inline virtual double distance(const Vector& v) const {