st_injects: Add data counts for parameterized injected clusters

In gsClusterDetect: Utilities for Geo-Spatial Cluster Detection and Significance Classification

Add data counts for parameterized injected clusters

Description

Function st_injects returns a list of two objects 1. a full dataset as a data.table with inject counts added according to design parameters. 2. a table of only the inject counts, locations, and dates.

Usage

st_injects(
  cases,
  distance_matrix,
  target_loc,
  center_decile,
  radius_miles,
  nr_cases,
  nr_days,
  end_date
)

Arguments

cases	data frame of cases
distance_matrix	a distance matrix
target_loc	a location into which the injection should occur
center_decile	an integer value between 1 and 10, inclusive
radius_miles	a numeric value >0
nr_cases	number of cases to inject
nr_days	number of days over which we want to inject cases
end_date	last date of injection

Value

a two-element list; each element is a dataframe. The first is the full dataset with injected cases and the second is the injected cases only

Examples

cases <- example_count_data
dm <- county_distance_matrix("OH")
target_loc <- "39175"
scen1 <- st_injects(
  cases = cases,
  distance_matrix = dm[["distance_matrix"]],
  target_loc = target_loc,
  center_decile = 7,
  radius_miles = 70,
  nr_cases = 100,
  nr_days = 4,
  end_date = "2025-02-05"
)

gsClusterDetect documentation built on July 27, 2026, 5:09 p.m.