Does the plot uses extra aesthetic mappings? — uses_extra

uses_extra_mappings checks if a student's plot contains more than the required aesthetic mappings. Note that we still return TRUE if the student's plot differs from the required aesthetic mappings because they are technically extra mappings from required set. We recommend you use uses_mapping checks for checking required mappings before uses_extra_mappings.

Usage

uses_extra_mappings(p, mappings, local_only = FALSE)

Arguments

p: A ggplot object or a layer extracted from a ggplot object with get_geom_layer or get_stat_layer.
mappings: One or more aesthetic mappings created with aes.
local_only: If TRUE, uses_extra_mappings will check only the mappings defined locally in a layer for the presence of mappings. If FALSE, uses_extra_mappings will check for mappings in the combination of global and local methods that will be used to plot a layer.

Value

A logical value.

Examples

require(ggplot2)
p <- ggplot(data = diamonds, aes(x = cut, sample = price)) +
  geom_qq()
uses_extra_mappings(p, aes(sample = price))
#> [1] TRUE