# neural network AR opinion and math background

I'm trying to predict a time series using the neural network approach. I saw this function "nnetar", in the "forecast" package, what do you think? I can not find a mathematical explanation about it. Can you suggest where I can find it?

• Did you look at the vignette in the forecastpackage? – kjetil b halvorsen Mar 28 '18 at 9:20
• sure but the mathematical explanation is not enough, I found this paper, can it be suitable for the nnetar package? "time series forecasting with neural networks: a comparative study using the airline data (julian faraway 1998)" – an.dr.ea Mar 28 '18 at 9:38
• That paper is 20+ years old at this point, and very out of date due in large part to advances in NN design. – jbowman Mar 29 '18 at 2:53