sample_n_groups: Sample random groups from a dataframe with NSE

In alexpghayes/hayeslib: Hayeslib

Description

Groups a dataframe by the specified feature, selects n of these groups and discards the rest. Returned dataframe is ungrouped.

Usage

sample_n_groups(df, group_var, n)

Arguments

df	A data frame or data frame like object recognized by dplyr
group_var	Feature to group by. Uses NSE like dplyr verbs.
n	Number of groups to take. If there are fewer than n groups, uses the

Value

Dataframe with n random groups selected according to specified grouping feature.

Examples

sample_n_groups(mtcars, cyl, 2)

alexpghayes/hayeslib documentation built on May 5, 2019, 4:47 p.m.