search for: cdownrang

Hello, Guys: I'm from China, my English is poor and I'm new to R. The first message I sent to R help meets some problems, so I send again. Hope that I can get useful suggestions from you warm-hearted guys. Thanks. I builded a multiplicative seasonal ARMA model to a series named "cDownRange". And the order is (1,1)*(0,1)45 The regular AR=1; regular MA=1; seasonal AR=0; seasonal MA=1; seasonal period=45. I fitted the model in R and get the result as below: Call:arima(x = cDownRange, order = c(1, 0, 1), seasonal = list(order = c(0, 1, 1), period = 45)) Coefficients: a...