Dear List, I have multiple time series, all of which (excepting 1) have missing values. These run for ~30 years, with monthly sampling. I need to determine stationarity, and have tried to use the Augmented Dickey-Fuller test (adf.test), but this cannot handle missing values. The same problem occurs when attempting cross-correlation (ccf).
Could someone please suggest any suitable functions in R to check for stationarity and to look at cross-correlation when NAs are present in a time series (and also, which packages these would be in) - or, do I have to interpolate the missing values first in order to perform these tests on my time series? Thankyou, Lillian. ______________________________________________ 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
