Fix: Rename percentile_occurrence index function (fixes #202)

climix/index_functions/__init__.py

@@ -16,7 +16,7 @@ from .index_functions import (  # noqa: F401
 )
 
 from .percentile_functions import (  # noqa: F401
-    PercentileOccurrence,
+    CountPercentileOccurrences,
 )
 
 from .spell_functions import (  # noqa: F401

climix/index_functions/percentile_functions.py

@@ -111,7 +111,7 @@ def build_indices(time, max_doy, no_years, window_size):
     return np_indices
 
 
-class PercentileOccurrence(IndexFunction):
+class CountPercentileOccurrences(IndexFunction):
     def __init__(self, percentile, condition,
                  reference_period="1961-1991",
                  bootstrapping=True):

setup.py

@@ -69,8 +69,8 @@ setuptools.setup(
             'climix.index_functions:LastOccurrence',
             'percentile='
             'climix.index_functions:Percentile',
-            'percentile_occurrence='
-            'climix.index_functions:PercentileOccurrence',
+            'count_percentile_occurrences='
+            'climix.index_functions:CountPercentileOccurrences',
             'spell_length='
             'climix.index_functions:SpellLength',
             'statistics='