Hello everybody, can someone please help me with this, please? Kind regards,Fabian From: schrot...@hotmail.com To: r-help@r-project.org Date: Mon, 10 Sep 2012 14:51:01 +0000 Subject: [R] predict arima
Hello, I have a question regarding the predict command for ARIMA models. Why do I not have to give any input except the number of steps for the forecast? Which input value is used (in my case for y(t))? Will the last parameter of the estimate vector be used (in my example 6)? x <- c(1,2,3,4,5,6) model <- arima(x, order=c(1,0,0), method="ML") predict(model, n.ahead = 1) -> Model: y(t+1) = 3.5 + 0.8925 * y(t) Which value is used for y(t) in the case of n.ahead = 1? Thank you,Fabian ______________________________________________ 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. [[alternative HTML version deleted]]
______________________________________________ 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.