bootstrap {i2extras} | R Documentation |
Bootstrap incidence time series
Description
This function can be used to bootstrap [incidence2]
objects. Bootstrapping
is done by sampling with replacement the original input dates.
Usage
bootstrap(x, randomise_groups = FALSE)
Arguments
x |
An |
randomise_groups |
Should groups be randomised as well in the resampling procedure; respective group sizes will be preserved, but this can be used to remove any group-specific temporal dynamics. If |
Details
As original data are not stored in incidence2::incidence objects, the bootstrapping is achieved by multinomial sampling of date bins weighted by their relative incidence.
Value
An [incidence2]
object.
Author(s)
Thibaut Jombart, Tim Taylor
Examples
if (requireNamespace("outbreaks", quietly = TRUE)) {
data(fluH7N9_china_2013, package = "outbreaks")
i <- incidence(
fluH7N9_china_2013,
date_index = "date_of_onset",
groups = "gender"
)
bootstrap(i)
}
[Package i2extras version 0.2.1 Index]