sample_approx_dist: Approximate Sampling a Distribution using Counts

In EpiNow2: Estimate Real-Time Case Counts and Time-Varying Epidemiological Parameters

Approximate Sampling a Distribution using Counts

Description

Deprecated; Convolves cases by a PMF function.

Usage

sample_approx_dist(
  cases = NULL,
  dist_fn = NULL,
  max_value = 120,
  earliest_allowed_mapped = NULL,
  direction = "backwards",
  type = "sample",
  truncate_future = TRUE
)

Arguments

cases	A ⁠<data.frame>⁠ of cases (in date order) with the following variables: date and cases.
dist_fn	Function that takes two arguments with the first being numeric and the second being logical (and defined as dist). Should return the probability density or a sample from the defined distribution. See the examples for more.
max_value	Numeric, maximum value to allow. Defaults to 120 days
earliest_allowed_mapped	A character string representing a date ("2020-01-01"). Indicates the earliest allowed mapped value.
direction	Character string, defato "backwards". Direction in which to map cases. Supports either "backwards" or "forwards".
type	Character string indicating the method to use to transform counts. Supports either "sample" which approximates sampling or "median" would shift by the median of the distribution.
truncate_future	Logical, should cases be truncated if they occur after the first date reported in the data. Defaults to TRUE.

Value

A ⁠<data.table>⁠ of cases by date of onset

EpiNow2 documentation built on Oct. 31, 2024, 5:09 p.m.