enw_filter_report_dates: Filter by report dates

In seabbs/epinowcast: Flexible Hierarchical Nowcasting

Filter by report dates

Description

This is a helper function which allows users to create truncated data sets at past time points from a given larger data set. This is useful when evaluating nowcast performance against fully observed data. Users may wish to combine this function with enw_filter_reference_dates().

Usage

enw_filter_report_dates(obs, latest_date, remove_days)

Arguments

obs	A data.frame; must have report_date and reference_date columns.
latest_date	Date, the latest report date to include in the returned dataset.
remove_days	Integer, if latest_date is not given, the number of report dates to remove, starting from the latest date included.

Value

A data.table filtered by report date

See Also

Preprocessing functions enw_add_delay(), enw_add_max_reported(), enw_add_metaobs_features(), enw_assign_group(), enw_complete_dates(), enw_construct_data(), enw_extend_date(), enw_filter_delay(), enw_filter_reference_dates(), enw_flag_observed_observations(), enw_impute_na_observations(), enw_latest_data(), enw_metadata(), enw_metadata_delay(), enw_missing_reference(), enw_preprocess_data(), enw_reporting_triangle(), enw_reporting_triangle_to_long()

Examples

# Filter by date
enw_filter_report_dates(germany_covid19_hosp, latest_date = "2021-09-01")

# Filter by days
enw_filter_report_dates(germany_covid19_hosp, remove_days = 10)

seabbs/epinowcast documentation built on Aug. 28, 2024, 12:31 p.m.