fquantile_byid: Compute Quantiles by Group

In ChristK/CKutils: Some Utility Functions I Use Regularly

Compute Quantiles by Group

Description

This function computes quantiles for subsets of a numeric vector defined by an ID vector. The input vector must be sorted by the ID vector. Optionally, the results can be rounded.

Usage

fquantile_byid(x, q, id, rounding = FALSE, na_rm = TRUE)

Arguments

x	A numeric vector from which quantiles are computed.
q	A numeric vector of probabilities for which quantiles are desired.
id	A string vector representing group identifiers. The vector x must be sorted by id.
rounding	Logical flag indicating whether to round the quantiles (default is false).
na_rm	Logical flag indicating whether to remove NA values (default is true).

Value

A list where the first element is a vector of group IDs and subsequent elements are numeric vectors of computed quantiles for each group.

ChristK/CKutils documentation built on April 11, 2025, 10:11 p.m.