Function reference • ggcheck

Get Plot Components

get_coordinate_system(): Which coordinate system does a plot use?

get_data(): Get the data set used by a plot or layer

get_default_labels(): What is the default label for a plot aesthetic?

get_default_params(): What are the default parameters for a plot layer?

get_geom_layer(): Isolate a geom layer from a plot

get_geoms(): List the geoms used by a plot

get_geoms_stats(): List the geom and stat combination used by all layers of a plot.

get_labels(): List the labels used by a plot

get_mappings(): Get aesthetic mappings from a layer or plot

get_stat_layer(): Isolate a stat layer from a plot

get_stats(): List the stats used by a plot

Locate Components by Layer

n_layers(): How many layers are in a plot?

ith_data(): Which data set does the ith layer use?

ith_data_is(): Does the ith layer use the correct data set?

ith_geom(): Which geom is used in the ith layer?

ith_geom_is(): Is the ith geom what it should be?

ith_geom_stat(): Which geom/stat combination is used in the ith layer?

ith_mappings(): Return the aesthetic mappings used by the ith layer

ith_mappings_use(): Does the ith layer use one or more aesthetic mappings?

ith_stat(): Which stat is used in the ith layer?

ith_stat_is(): Is the ith stat what it should be?

Test that a Plot Uses a Component

identical_aes(): Are aesthetic mapping specifications "identical"?

uses_aesthetics(): Does a plot use one or more aesthetics?

uses_coordinate_system(): Does a plot use the correct coordinate system?

uses_data(): Does a plot or layer use the correct data set?

uses_extra_mappings(): Does the plot uses extra aesthetic mappings?

uses_geom_params() uses_geom_param(): Does a layer use one of more specific parameters?

uses_geoms(): Does a plot use one or more geoms?

uses_labels(): Does a plot use one or more labels?

uses_mappings(): Does a plot or layer use one or more mappings?

uses_stat_param(): Does a layer use a specific stat parameter?

uses_stats(): Does a plot use one or more stats?

Miscellaneous Helper Functions

is_ggplot() stop_if_not_ggplot() fail_if_not_ggplot(): Check if an object is a ggplot

get_default_labels(): What is the default label for a plot aesthetic?

get_default_params(): What are the default parameters for a plot layer?

default_label() default_param(): Placeholders for default values

gradethis_equal(<ggplot>): Compare two ggplots to check whether they are equal