search for: para_qtr

Displaying 1 result from an estimated 1 matches for "para_qtr".

2011 Sep 14
3
Loops
Dear forum, I would like to forecast e.g. with the arima-model. To figure out which model works best I am going to predict with this models. my first code: for(ar.ord in 1:3){ for(ma.ord in 1:3){ print(predict(arima(para_qtr[1:(n-8),1],order=c(ar.ord,1,ma.ord)), n.ahead=8)$pred) } } this one works. but I want to "save" my results in a matrix or a data.frame. my second code: foreL<-8 b0f<-matrix(nrow=9, ncol=foreL) for(i in 1:9){ for(ar.ord in 1:3){ for(ma.ord in 1:3){ b0f[i,]<-c(predict(arima(para_...