5.6 TTR
M <- momentum(Cl(AAPL), n=2)
head (M,n=5)
## AAPL.Close
## 2003-01-02 NA
## 2003-01-03 NA
## 2003-01-06 0.003540063
## 2003-01-07 -0.001770279
## 2003-01-08 -0.012389971
5.6.1 Trading signal
Buy signal arises when momentum changes from negative to positive.
Sell signal arises when momentum changes from positive to negative.
5.6.2 Charting
chartSeries(AAPL,
subset='2007-05::2009-01',
theme=chartTheme('white'))
addMomentum(n=1)