year<-2004:2014
> data<- data.frame(year,GDP=c(6033.21,6969.52,8117.78,9846.81,11115,12153.58,14113.58,16251.93,17879.4,19800.81,21330.8))
> names(data)=c("year","productValue")
> data.tsHelp=ts(data$productValue,start=c(2004),frequency =1)
> plot.ts(data.tsHelp)
> data.forecast= HoltWinters(data.tsHelp, gamma=FALSE,beta=0.1)
> plot(data.forecast)
> data.futureValue = forecast.HoltWinters(data.forecast, h=5)
程序说没有出现过 forecast.HoltWinters!怎么办啊,明天就要交作业了!


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