add_dir_search function

A ggproto for drawing directional search points

This is a wrapper function used by explore_space_pca() and should be be called directly by the user

add_dir_search(dt, dir_size = 0.5, dir_alpha = 0.5, dir_color = NULL, ...)

Arguments

• dt: A data object from the running the optimisation algorithm in guided tour
• dir_size: numeric; the size of the directional search points in pseudo derivative search
• dir_alpha: numeric; the alpha of the directional search points in pseudo derivative search
• dir_color: the variable to be coloured by
• ...: other aesthetics inherent from explore_space_pca()

Returns

a wrapper for drawing directional search points (used in pseudo derivative search) with buffer in explore_space_pca()

See Also

Other draw functions: add_anchor(), add_anno(), add_end(), add_interp(), add_interp_last(), add_interrupt(), add_search(), add_space(), add_start(), add_theo()