tfI | R Documentation |
Integrate multivariate time series using cumsum
tfI (x, I=rep(TRUE, NCOL(x)), t0=rep(0, NCOL(x)))
x |
a multivariate time series object. |
I |
a logical of length equal the number of series in |
t0 |
a vector of length equal the number of series in |
This function first prepends t0
to x
and then applies
cumsum
to each series indicated by I
. The first value is then
dropped from the result.
a multivariate time series object of the same dimension as x
.
tfL
tfwindow
aggregate
cumsum
as.quarterly
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