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#!/bin/env python
##
## Copyright (c) 2010-2017 Intel Corporation
##
## 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 decimal import *
class TimeSeriesPoint:
def __init__(self, value, instant):
self._value = value;
self._instant = instant;
def getValue(self):
return self._value;
def getInstant(self):
return self._instant;
def getRateOfChange(self, other):
diff = self.getValue() - other.getValue();
t_diff = self.getInstant() - other.getInstant();
if (diff == 0 or abs(t_diff) <= 0.00001):
return Decimal(0)
else:
return Decimal(diff)/t_diff
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