From f2b8a9580b0a1b96621a804950b9347b94cf4176 Mon Sep 17 00:00:00 2001
From: Fabian Joswig <fabian.joswig@ed.ac.uk>
Date: Mon, 4 Oct 2021 17:20:58 +0100
Subject: [PATCH] Corr.roll method implemented

---
 pyerrors/correlators.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pyerrors/correlators.py b/pyerrors/correlators.py
index 60efdb9b..dc5f181e 100644
--- a/pyerrors/correlators.py
+++ b/pyerrors/correlators.py
@@ -151,7 +151,6 @@ class Corr:
         return Corr(newcontent)
 
 
-
     #This method will symmetrice the matrices and therefore make them positive definit.
     def smearing_symmetric(self):
         if self.N > 1:
@@ -176,6 +175,11 @@ class Corr:
         sp_vec = sp_vec/np.sqrt(sp_vec@sp_vec)
         return sp_vec
 
+
+    def roll(self, dt):
+        return Corr(list(np.roll(np.array(self.content, dtype=object), dt)))
+
+
     def deriv(self, symmetric=True): #Defaults to symmetric derivative
         if not symmetric:
             newcontent = []