Trigonometric regression Filter — filter

This function computes the cyclical component of the trigonometric regression filter.

filter_tr(x, ...)

Arguments

x	`[univariate vector]` Univariate vector, numeric or ts object with only one dimension.
...	Further arguments passed to `trfilter`.

[univariate vector]

Univariate vector, numeric or ts object with only one dimension.

...

Further arguments passed to trfilter.

# \donttest{
unemp <- ggplot2::economics$unemploy
unemp_cycle <- filter_tr(unemp, pl=8, pu=40)
plotx(cbind(unemp, unemp_cycle))
# }