Prepare to output real relative error.

In Wasserstein distance computation AuctionRunner class now has a field
relativeError which contains the relative error which we can guarantee,
so if the user asked for 0.1 accuracy, but the result is 0.03 accurate,
this information can be retrieved.

1 files changed, 2 insertions, 0 deletions

diff --git a/geom_matching/wasserstein/include/auction_runner_jac.h b/geom_matching/wasserstein/include/auction_runner_jac.h
index 22d42b0..524498a 100644
--- a/geom_matching/wasserstein/include/auction_runner_jac.h
+++ b/geom_matching/wasserstein/include/auction_runner_jac.h
@@ -52,6 +52,7 @@ public:
     double getEpsilon() const { return epsilon; }
     double getWassersteinDistance();
     double getWassersteinCost();
+    double getRelativeError() const { return relativeError; };
     static constexpr double epsilonCommonRatio { 5 }; // next epsilon = current epsilon / epsilonCommonRatio
     static constexpr int maxIterNum { 25 }; // maximal number of iterations of epsilon-scaling
 private:
@@ -69,6 +70,7 @@ private:
     double wassersteinDistance;
     double wassersteinCost;
     std::vector<IdxValPair> bidTable;
+    double relativeError;
     // to get the 2 best items
     std::unique_ptr<AuctionOracle> oracle;
     std::list<size_t> unassignedBidders;