[R] rollmean and stl

From: stephen sefick <ssefick_at_gmail.com>
Date: Tue, 22 Jul 2008 15:04:23 -0400

I need to investigate how rollmean and the trend returned from stl differ. I am trying to find out exactly what the trend part of stl is (I have just started coding in R and do not know fortran). I need to extract this because it will be used in further calculations, and it needs to be verified to make sure that I am using the right process. I would like to use this to remove the seasonal component of a time series to investigate the advective transport of oxygen and the local production.

I tried
d <- stl(data, s.window="periodic")
and I get NULL




Let's not spend our time and resources thinking about things that are so little or so large that all they really do for us is puff us up and make us feel like gods. We are mammals, and have not exhausted the annoying little problems of being mammals.

-K. Mullis

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