is.rel

An implementation of the grammar of graphics in R. It combines the
    advantages of both base and lattice graphics: conditioning and shared axes
    are handled automatically, and you can still build up a plot step by step
    from multiple data sources. It also implements a sophisticated
    multidimensional conditioning system and a consistent interface to map
    data to aesthetic attributes. See http://ggplot2.org for more information,
    documentation and examples.

is.rel: Reports whether x is a rel object

Description

Usage

Arguments