plot.ts()
decompose()
diff()
arima()
adf.test()
ur.df()
ndiffs()
Arima()
auto.arima()
MARSS()
X1 is the estimate of the signal. The mean has been removed. X2, X3 and X4 are the AR-1 errors for our sensors.
require(ggplot2) autoplot(fit.mod1, plot.type = "xtT", conf.int = FALSE)
