--- /dev/null
+# Copyright (c) 2018 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from abc import ABCMeta, abstractmethod
+
+
+class AbstractGroupClassifier(object):
+
+ __metaclass__ = ABCMeta
+
+ @abstractmethod
+ def classify(self, values):
+ """Divide values into consecutive groups with metadata.
+
+ The metadata does not need to follow any specific rules,
+ although progression/regression/outlier description would be fine.
+
+ :param values: Sequence of runs to classify.
+ :type values: Iterable of float or of AvgStdevMetadata
+ :returns: Classified groups
+ :rtype: Iterable of RunGroup
+ """
+ pass