HI Rich: How irregular is irregular. kalman filter based methods, such as those in KFAS and DLM, can handle missing data, and often "irregular" data can be thought of as regular data with missing values, A lot depends on how irregular and how big the gaps, to the point where the analysis can be calculated but is not very meaningful.
Don't know if this helps. -Roy M. On Apr 3, 2014, at 2:25 PM, Rich Shepard <rshep...@appl-ecosys.com> wrote: > On Thu, 3 Apr 2014, arun wrote: > >> Not sure if this helps you. >> http://stackoverflow.com/questions/12623027/how-to-analyse-irregular-time-series-in-r > > A.K., > > Yes, it does. I've read all the zoo docs I can find and have been > searching for more information on irregular time series data. Environmental > data, unlike financial or economic data (or the examples in books and R help > pages) is always sloppy and irregular. Wish there was a book or monograph on > these data. > > Thanks very much, > > Rich > > -- > Richard B. Shepard, Ph.D. | Have knowledge, will travel. > Applied Ecosystem Services, Inc. | > www.appl-ecosys.com Voice: 503-667-4517 Fax: 503-667-8863 > > ______________________________________________ > 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. ********************** "The contents of this message do not reflect any position of the U.S. Government or NOAA." ********************** Roy Mendelssohn Supervisory Operations Research Analyst NOAA/NMFS Environmental Research Division Southwest Fisheries Science Center 1352 Lighthouse Avenue Pacific Grove, CA 93950-2097 e-mail: roy.mendelss...@noaa.gov (Note new e-mail address) voice: (831)-648-9029 fax: (831)-648-8440 www: http://www.pfeg.noaa.gov/ "Old age and treachery will overcome youth and skill." "From those who have been given much, much will be expected" "the arc of the moral universe is long, but it bends toward justice" -MLK Jr. ______________________________________________ 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.
