Merge branch 'develop' into documentation

.github/workflows/pytest.yml

@@ -6,6 +6,8 @@ on:
       - master
       - develop
   pull_request:
+  schedule:
+    - cron: '0 4 * * *'
 
 jobs:
   pytest:

pyerrors/correlators.py

@@ -443,7 +443,7 @@ class Corr:
             if self.prange:
                 fitrange = self.prange
             else:
-                fitrange = [0, self.T]
+                fitrange = [0, self.T - 1]
 
         xs = [x for x in range(fitrange[0], fitrange[1] + 1) if not self.content[x] is None]
         ys = [self.content[x][0] for x in range(fitrange[0], fitrange[1] + 1) if not self.content[x] is None]

tests/correlators_test.py

@@ -79,6 +79,18 @@ def test_T_symmetry():
         T_symmetric = my_corr.T_symmetry(my_corr)
 
 
+def test_fit_correlator():
+    my_corr = pe.correlators.Corr([pe.pseudo_Obs(1.01324, 0.05, 't'), pe.pseudo_Obs(2.042345, 0.0004, 't')])
+
+    def f(a, x):
+        y = a[0] + a[1] * x
+        return y
+
+    fit_res = my_corr.fit(f)
+    assert fit_res[0] == my_corr[0]
+    assert fit_res[1] == my_corr[1] - my_corr[0]
+
+
 def test_utility():
     corr_content = []
     for t in range(8):