i have below file as time series data http://r.789695.n4.nabble.com/file/n4494907/1A2X_B_phi_psi_pot_r_k.txt 1A2X_B_phi_psi_pot_r_k.txt i used autofit function from "itsmr" package
>k<-read.table(file.choose()) > ar(k$V1) Call: ar(x = k$V1) Order selected 0 sigma^2 estimated as 0.2499 > autofit(k$V1) Error in arima(x, c(p, 0, q)) : non-stationary AR part from CSS what is this CSS ?& hot to make it stationary -- View this message in context: http://r.789695.n4.nabble.com/how-to-make-this-time-series-data-stationary-tp4494907p4494907.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.