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get_plot_data

Source: R/utilities.R
get_plot_data.Rd

extract data from a 'gg' plot

Usage

get_plot_data(plot, var = NULL, layer = NULL)

Arguments

plot

a 'gg' plot object

var

variables to be extracted

layer

specific layer to extract the data

Value

a data frame of selected variables

Author

Guangchuang Yu