Hi,
I'm trying to figure out common approach on calculating MA on a dataset
that contains column "time".
After digging around, I believe functions rollmean and rollaply should
be used.
However I don't quite understand the requirements for the underlying data.
Should it be zoo object type? Formatted in a special way?
As an example, I'm looking to get calculated avg=MA(variable) over 15
sec period on "time_sec" column:
date variable time_sec avg
2011-05-17 132.55 11:29:59.579 132.55
2011-05-17 132.65 11:29:59.946 132.60
2011-05-17 132.5 11:29:59.946 132.57
2011-05-17 132.5 11:29:59.946 132.55
2011-05-17 132.55 11:29:59.946 132.55
2011-05-17 132.6 11:29:59.946 132.56
2011-05-17 132.55 11:29:59.946 132.56
2011-05-17 132.65 11:29:59.947 132.57
2011-05-17 132.85 11:30:00.45 132.60
2011-05-17 132.9 11:30:00.45 132.63
2011-05-17 133.05 11:30:00.45 132.67
2011-05-17 132.2 11:30:00.45 132.63
2011-05-17 132.5 11:30:00.45 132.62
2011-05-17 132.7 11:30:00.50 132.63
2011-05-17 132.75 11:30:00.57 132.63
2011-05-17 132.55 11:30:00.70 132.63
2011-05-17 132.25 11:30:00.70 132.61
2011-05-17 132.25 11:30:00.71 132.59
2011-05-17 132.35 11:30:00.173 132.57
2011-05-17 132.45 11:30:00.173 132.57
Any help is really appreciated.
Thanks,
--Roman N.
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