merge_groups: Merge groups of elements within a vector by a function
In mikemc/speedyseq: Faster implementations of phyloseq functions

merge_groups

R Documentation

Merge groups of elements within a vector by a function

Description

Internal function used in merge_samples2() to merge variables. Note, owing to the use of split(), the merged elements in the new vector will be reordered according to group.

Usage

merge_groups(x, group, f = unique_or_na)

Arguments

`x`	A vector whose elements will be merged.
`group`	A vector such that `as.factor(group)` defines the grouping.
`f`	A function that, when applied to a subvector of x, returns a single value. Can also be a formula as interpretted by `purrr::as_mapper()`.