Dear everyone, I have met a problem when using the R function arima.
The following is the coding. > www <- "http://www.massey.ac.nz/~pscowper/ts/pounds_nz.dat" > x <- read.table(www, header = T) > x.ts <- ts(x, st = 1991, fr = 4) > x.ma <- arima(x.ts, order = c(0, 0, 1)) > x.ma > acf(x.ma$res[-1]) I was wondering whether somone here could enlighten me how x.ma$res is calculated in the previous example of R ? Thank you so much! -- View this message in context: http://r.789695.n4.nabble.com/Please-help-a-question-about-the-R-function-arima-thanks-a-lot-tp4337535p4337535.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.