search for: x12arima

Dear All, I've used the X-12-ARIMA or its earlier versions from S+ and R under both Unix and Windows platforms for many years using the klugey approach of calling an executable using in R the system function. I've found this serviceable for the following reasons. 1) Paul Gilbert's hunch is correct that many of the subroutines have extensive IO calls (especially the X-11 engine)

...ips on how to do a pseudo-additive seasonal decomposition in R? I am working on a ca. 20 year monthly time series on species abundance data, with annual peaks of varying 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",...