Added racetrack filter module.

fatpack/__init__.py

@@ -3,5 +3,6 @@
                         unicode_literals)
 from .rainflow import *
 from .endurance import *
+from .racetrack import *
 
-__version__ = "0.5.8"
+__version__ = "0.6.0"

fatpack/rainflow.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 """
 Implementation of 4-point rainflow counting algorithm in numpy. The
-implementation and terminology is based off on the following resources:
+implementation and terminology is based on the following resources:
 
     `C. Amzallag et. al. Standardization of the rainflow counting method for
     fatigue analysis. International Journal of Fatigue, 16 (1994) 287-293`

fatpack/test.py

@@ -4,7 +4,8 @@
 import numpy as np
 import unittest
 from .rainflow import (get_load_classes, get_load_class_boundaries,
-                       find_reversals_strict, find_rainflow_ranges_strict)
+                       find_reversals_strict, find_rainflow_ranges_strict,
+                       )
 from . import *
 
 TESTDATA = dict(
@@ -193,5 +194,14 @@ def test_get_bilinear_endurance(self):
             self.assertEqual(f, s)
 
 
+class TestRaceTrackFilter(BaseArrayTestCase, unittest.TestCase):
+    def setUp(self):
+        self.result_true = np.array(
+            [4.2,  7.3,  2., 10.3,  5.2,  8.5,  2.2, 12.,  5.5, 11.1,  1.,
+             9.5,  6., 12.,  3.9,  8.3,  1.2,  8.6,  3.9,  6.2])
+        y = TESTDATA['dataseries']
+        self.result, _ = find_reversals_racetrack_filtered(y, 2, k=64)
+
+
 if __name__ == "__main__":
     unittest.main()