blockstrap (version 1.0.0)

slice_block: Sample complete groups from a data frame

Description

Samples complete groups from a grouped data frame, including all of each group as part of the sample. Can be considered a form of grouped bootstrap sampling.

Usage

slice_block(.data, ...)
# S3 method for data.frame
slice_block(.data, ...)
# S3 method for grouped_df
slice_block(.data, n = 1, replace = FALSE, weight_by = NULL, ...)

Value

A data frame with sampled complete groups

Arguments

.data

A grouped data frame, generated using [dplyr::group_by](dplyr::group_by)

...

Additional arguments passed to methods

n

Number of samples to draw

replace

Should sampling be done with replacement?

weight_by

Optional expression to weight groups by (unquoted name)

Examples

ToothGrowth |>
   dplyr::group_by(supp, dose) |>
   slice_block(n = 2)