parse given plot settings
parse_plot_attributes(argv = c("png", "'myname'", "900*640", "my_plot_dir"),
conf = list(aes = list("x=cyl", "y=mpg"), non_aes = list("color='blue'",
"shape=18"), geom_list = c("point", "smooth")),
dataset_string = "mtcars-32")A character vector
A list of aesthetic and non-aesthetic assignments
A character representing a dataset directory