perf

Author: rhshadrach

pandas/core/missing.py

@@ -312,9 +312,9 @@ def get_interp_index(method, index: Index) -> Index:
     # create/use the index
     if method == "linear":
         # prior default
-        from pandas import Index
+        from pandas import RangeIndex
 
-        index = Index(np.arange(len(index)))
+        index = RangeIndex(len(index))
     else:
         methods = {"index", "values", "nearest", "time"}
         is_numeric_or_datetime = (

pandas/tests/resample/test_base.py

@@ -126,9 +126,7 @@ def test_resample_interpolate_regular_sampling_off_grid(
     result = ser.resample("1h").interpolate(method)
 
     if method == "linear":
-        values = np.repeat(np.arange(0.0, 4.0), 2) + np.tile(
-            np.arange(1 / 3, 0.7, 1 / 3), 4
-        )
+        values = np.repeat(np.arange(0.0, 4.0), 2) + np.tile([1 / 3, 2 / 3], 4)
     elif method == "nearest":
         values = np.repeat(np.arange(0.0, 5.0), 2)[1:-1]
     elif method == "zero":