hi everyone! I have a 40-year monthy streamflow record. And i want to fit a neural network. I already fitted an autoregressive model and found out that an AR(3) model fits my time series (time.series) the best.
I am currently having problems on how to express the argument "formula" for my neural network.. I am aware that my model should be Q(t) ~ Q(t-1) + Q(t-2) + Q(t-3). But I can't seem to figure out how to express this in a formula that R would recognize. Any help, suggestions and comments to enlighten me will be truly appreciated. CJ Rubio -- View this message in context: http://n4.nabble.com/help-in-identifying-the-argument-formula-in-the-package-nnet-tp1401467p1401467.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
