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Filter the last N rows (Tail) for multiple time series
panel_tail(data, id, n)
A data frame
An "id" feature indicating which column differentiates the time series panels
The number of rows to filter
recursive() - used to generate recursive autoregressive models
recursive()
library(timetk) # Get the last 6 observations from each group m4_monthly %>% panel_tail(id = id, n = 6)
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