class Stochastics(MultiMetricMetric):
""" Implementation of Full Stochastsics
For Slow Stochastics, pass a kperiod of 3. For Fast Stochastics,
pass a kperiod of 1. In other words, if you want Fast Stochastics(14,3)
in terms of a trading chart, use Stochastics(14,1,3) here.
"""
def __init__(self, period, kperiod, dperiod):
MultiMetricMetric.__init__(self)
self.period = period
self.dperiod = dperiod
self.close = Close()
self.low = Low()
self.high = High()
self.lowest = Lowest(self.low,self.period)
self.highest = Highest(self.high, self.period)
self.closediff = Subtract(self.close, self.lowest)
self.highdiff = Subtract(self.highest, self.lowest)
self.percentKRaw = Divide(self.closediff, self.highdiff)
self.pK = Multiply(self.percentKRaw, Value(100.0))
self.slowK = SimpleMovingAverage(metric=self.pK, period=kperiod)
self.pD = SimpleMovingAverage(metric=self.slowK, period=self.dperiod)
self._addMetrics(self.close, self.low, self.high, self.lowest,
self.highest, self.closediff, self.highdiff,
self.percentKRaw, self.pK, self.slowK, self.pD)
def value(self):
return self.pD.value()
def percentK(self):
return self.pK.value()
def slowK(self):
return self.slowK.value()
def __init__(self, period, kperiod, dperiod):
MultiMetricMetric.__init__(self)
self.period = period
self.dperiod = dperiod
self.close = Close()
self.low = Low()
self.high = High()
self.lowest = Lowest(self.low,self.period)
self.highest = Highest(self.high, self.period)
self.closediff = Subtract(self.close, self.lowest)
self.highdiff = Subtract(self.highest, self.lowest)
self.percentKRaw = Divide(self.closediff, self.highdiff)
self.pK = Multiply(self.percentKRaw, Value(100.0))
self.slowK = SimpleMovingAverage(metric=self.pK, period=kperiod)
self.pD = SimpleMovingAverage(metric=self.slowK, period=self.dperiod)
self._addMetrics(self.close, self.low, self.high, self.lowest,
self.highest, self.closediff, self.highdiff,
self.percentKRaw, self.pK, self.slowK, self.pD)