extract_by_name: Extract elements by name

In tern: Create Common TLGs Used in Clinical Trials

Extract elements by name

Description

This utility function extracts elements from a vector x by names. Differences to the standard [ function are:

Usage

extract_by_name(x, names)

Arguments

x	(named vector) where to extract named elements from.
names	(character) vector of names to extract.

Details

• If x is NULL, then still always NULL is returned (same as in base function).

• If x is not NULL, then the intersection of its names is made with names and those elements are returned. That is, names which don't appear in x are not returned as NAs.

Value

NULL if x is NULL, otherwise the extracted elements from x.

tern documentation built on June 22, 2024, 10:25 a.m.