From 74a2f5da3321f045d3d023648077b2d4302f5689 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Tue, 12 May 2020 15:02:02 -0400
Subject: New variable in tuning that sets how much of new temperatures to use.

---
 hadamard_pt.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'hadamard_pt.hpp')

diff --git a/hadamard_pt.hpp b/hadamard_pt.hpp
index b73afe0..0d902f9 100644
--- a/hadamard_pt.hpp
+++ b/hadamard_pt.hpp
@@ -50,7 +50,7 @@ public:
     return accepted;
   }
 
-  std::vector<double> tune(unsigned n0, unsigned m, double ε, double ε2) {
+  std::vector<double> tune(unsigned n0, unsigned m, double ε, double ε2, double y = 0.2) {
     unsigned n = n0;
 
     while (true) {
@@ -146,7 +146,7 @@ public:
       double err = 0;
       for (unsigned i = 0; i < T1.size(); i++) {
         err += fabs(T1[i] - 1 / Ms[Ms.size() - i - 2].β);
-        Ms[Ms.size() - i - 2].β = 1.0 / T1[i];
+        Ms[Ms.size() - i - 2].β = (1 - y) * Ms[Ms.size() - i - 2].β + y / T1[i];
       }
 
       double Δf = sqrt(Δf²);
-- 
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