calc_n_sites: Calculate number of unique SiteIDs per epiweek

In MartinHoldrege/turnr: Normalization of Test Utilization Rate

Description

Given daily site level data, calculate the number of unique SiteIDs for each epiweek.

Usage

calc_n_sites(df, group_vars = NULL, window = 3)

Arguments

df	This is a dataframe containing daily test utilization data must have columns of "daily_TUR_rp","SiteID", "date", as well as columns to group by
group_vars	columns to group by (e.g. region). Unquoted names of columns enclosed in vars(), or NULL
window	Width (in weeks) of window over which to count how many sites are present.

Value

dataframe with SiteID, date, epiweek, epiyear, epidate, n_sites (number of sites that week), and other grouping variables

Examples

# see ?TUR_dat
calc_n_sites(TUR_dat)
calc_n_sites(TUR_dat, group_vars = vars(InstrumentVersion))

MartinHoldrege/turnr documentation built on May 16, 2020, 10:39 a.m.