I have a time series x = f(t), where t is taken for each month. What is the best function to detect if _x_ has a seasonal variation? If there is such seasonal effect, what is the best function to estimate it?
Function arima has a "seasonal" parameter, but I guess this is too complex to be useful. Alberto Monteiro ______________________________________________ R-help@stat.math.ethz.ch 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.
