aggregate_rolling_sum | R Documentation |
This function takes a data.table and applies a rolling sum over a given timestep, aggregating by specified columns. It's particularly useful for aggregating observations over certain periods.
aggregate_rolling_sum(dt, internal_timestep, by = NULL)
dt |
A |
internal_timestep |
An integer indicating the period over which to aggregate. |
by |
A character vector specifying the columns to aggregate by. |
A modified data.table with aggregated observations.
Utility functions
coerce_date()
,
coerce_dt()
,
date_to_numeric_modulus()
,
get_internal_timestep()
,
is.Date()
,
stan_fns_as_string()
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