enw_add_max_reported: Add the maximum number of reported cases for each...

In seabbs/epinowcast: Flexible Hierarchical Nowcasting

Add the maximum number of reported cases for each reference_date

Description

This is a helper function which adds the maximum (in the sense of latest observed) number of reported cases for each reference_date and computes the proportion of already reported cases for each combination of reference_date and report_date.

Usage

enw_add_max_reported(obs, copy = TRUE)

Arguments

obs	A data.frame containing at least the following variables: ⁠reference date⁠ (index date of interest), report_date (report date for observations), and confirm (cumulative observations by reference and report date).
copy	Should obs be copied (default) or modified in place?

Value

A data.table with new columns max_confirm and cum_prop_reported. max_confirm is the maximum number of cases reported for a certain reference_date. cum_prop_reported is the proportion of cases for a certain reference_date that are reported until a given report_day, relative to all cases so far observed for this reference_date.

See Also

Preprocessing functions enw_add_delay(), enw_add_metaobs_features(), enw_assign_group(), enw_complete_dates(), enw_construct_data(), enw_extend_date(), enw_filter_delay(), enw_filter_reference_dates(), enw_filter_report_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

obs <- data.frame(report_date = as.Date("2021-01-01") + 0:2)
obs$reference_date <- as.Date("2021-01-01")
obs$confirm <- 1:3
enw_add_max_reported(obs)

seabbs/epinowcast documentation built on Sept. 20, 2024, 2:39 a.m.