Re: [R] arima and xreg

2008-09-12 Thread Jose Capco
Thats nice thanks =) .. I can trick R to do multivariate armax with lagged inputs as well and I bet R people didnt designed it that way (but the idea is the same when doing MLE, it must work).. anyway.. I wrote a small code (you can change it if you want) that does armax with multiple inputs in ma

Re: [R] arima and xreg

2008-09-11 Thread Jose Capco
experiment with xreg and report here.. Im doing this because the documentation (as many of us already know.. ) do not really explain xreg very well. Sincerely, Jose Capco __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help P

[R] arima and xreg

2008-09-10 Thread Jose Capco
Dear R-help-archive.. I am trying to figure out how to make arima prediction when I have a process involving multivariate time series input, and one output time series (output is to be predicted) .. (thus strictly speaking its an ARMAX process). I know that the arima function of R was not designe