Hi all :) Before posting, I used the "search" function to find a solution, but I wasn't lucky. I'm using RExcel; I've read several examples which explain how to call in RExcel an R function via =RApply(...) but I don't understand how may I include in the function several numeric arguments. Take this example: I want to use the following R function from "FitARMA" package: FitARMA(z, order = c(0, 0, 0), demean = TRUE, MeanMLEQ = FALSE, pApprox 30, MaxLag = 30) What's the right syntax? How may I get the ARMA coefficients and/or the t+1 ARMA forecast in RExcel? Thank you very much! -- View this message in context: http://r.789695.n4.nabble.com/Hi-Help-using-FitARMA-package-in-RExcel-tp3528577p3528577.html Sent from the R help mailing list archive at Nabble.com.