is.facet

<p>Is this object a faceting specification?</p>

internal

A system for 'declaratively' creating graphics,
based on "The Grammar of Graphics". You provide the data, tell 'ggplot2'
how to map variables to aesthetics, what graphical primitives to use,
and it takes care of the details.

Hadley Wickham

ggplot2

Create Elegant Data Visualisations Using the Grammar of Graphics

Winston Chang

Lionel Henry

Thomas Lin Pedersen

Kohske Takahashi

Claus Wilke

Kara Woo

Hiroaki Yutani

RStudio 

is.facet function

Is this object a faceting specification? — is.facet

Is this object a faceting specification?

is.facet: Is this object a faceting specification?

Description

Usage

Arguments