requirePlottingPackage: Require an optional plotting package

In s20x: Functions for University of Auckland Course STATS 201/208 Data Analysis

Require an optional plotting package

Description

Checks that an optional plotting package is installed and gives a consistent error message for optional plotting engines.

Usage

requirePlottingPackage(package, engine = "ggplot2")

Arguments

package	character name of the required optional package.
engine	character name of the plotting engine being used.

Value

Invisibly returns TRUE when the package is available.

s20x documentation built on July 1, 2026, 9:06 a.m.