nest_by: Nest By

In poorman: A Poor Man's Dependency Free Recreation of 'dplyr'

Nest By

Description

nest_by() is similar to group_by() however instead of storing the group structure in the metadata, it is made explicit in the data. Each group key is given a single row within the data.frame and the group's data is stored within a list-column of the data.frame.

Usage

nest_by(.data, ..., .key = "data", .keep = FALSE)

Arguments

.data	A data.frame.
...	Grouping specification, forwarded to group_by().
.key	character(1). The name of the column in which to nest the data (default: "data").
.keep	logical(1). Should the grouping columns be kept (default: TRUE)?

Details

Currently there is no pretty-printing provided for the results of nest_by() and they are not useable with other functions such as mutate().

Examples

mtcars %>% nest_by(am, cyl)
# Or equivalently
mtcars %>% group_by(am, cyl) %>% nest_by()

poorman documentation built on Nov. 2, 2023, 5:27 p.m.