Description Usage Arguments Details Value Author(s) See Also Examples
Creates a results timeseries of a function applied over a rolling window.
1 | apply.rolling(R, width, trim = TRUE, gap = 12, by = 1, FUN = "mean", ...)
|
R |
an xts, vector, matrix, data frame, timeSeries or zoo object of asset returns |
width |
number of periods to apply rolling function window over |
trim |
TRUE/FALSE, whether to keep alignment caused by NA's |
gap |
numeric number of periods from start of series to use to train risk calculation |
by |
calculate FUN for trailing width points at every by-th time point. |
FUN |
any function that can be evaluated using a single set of returns
(e.g., rolling beta won't work, but |
... |
any other passthru parameters |
Wrapper function for rollapply
to hide some of the
complexity of managing single-column zoo objects.
A timeseries in a zoo object of the calculation results
Peter Carl
1 2 |
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