i have attached file, http://r.789695.n4.nabble.com/file/n4542543/1BHP_A.txt 1BHP_A.txt i just want to validate predicting results, i give less 10 digits for prediction & compare results it with previous input data(input file)
> i<-read.table(file.choose()) #attached file taking > i<-i$V1 > length(i) [1] 44 > j<-i[1:34] > pre<-predict(ar(i),n.ahead=10) > ts.plot(ts(j),pre$pred,col=c(1,5)) > pre$pred Time Series: Start = 45 End = 54 Frequency = 1 [1] -0.01136364 -0.01136364 -0.01136364 -0.01136364 -0.01136364 [6] -0.01136364 -0.01136364 -0.01136364 -0.01136364 -0.01136364 prediction gives similar values,i.e. straight line. why this so? -- View this message in context: http://r.789695.n4.nabble.com/i-am-not-getting-time-series-prediction-results-tp4542543p4542543.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.
