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2012 Jun 25
0
x12 ARIMA Moving Seasonality F Test Issue
...Freedom Square F-value
Between Years 236.0512 11 21.459200 2.681*
Error 968.4973 121 8.004110
Here's me doing it manually with some sample data:
library(x12)
library(TSA) ### for cycle function
data(AirPassengers)
x12path <- "C:/WinX12/x12a/x12a.exe"
x12out <- x12(AirPassengers,x12path=x12path,
period=12,automdl=TRUE,transform="auto",outlier=c("AO","LS"),forecast_years=
0)
si <- as.vector(x12out$d8) ### SI ratios -- i.e., final detrended series
mo <- factor(cyc...
2012 Aug 22
0
pseudo-additive seasonal decomposition
...magnitude and zero abundances between the seasonal occurrences.
I have tried to use the package "x12", which utilizes x12arima, but without luck so far. More specifically, I am trying to run the following code, using R version 2.15.0:
Cx12 <- x12(Cyanea.ts, period=12,
x12path="C:\\x12a.exe", use="x12",
forecast_years=0,
transform="none",
x11regress=F,
samode="pseudoadd",
seasonalma="s3x3")
Everything seems to run ok and a number of files ge...