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

add_interp_last(
dt,
interp_last_size = 3,
interp_last_alpha = 1,
interp_last_color = NULL,
...
)

## Arguments

dt

A data object from the running the optimisation algorithm in guided tour

interp_last_size

numeric; the size of the last interpolation points in each iteration

interp_last_alpha

numeric; the alpha of the last interpolation points in each iteration

interp_last_color

the variable to be coloured by

...

other aesthetics inherent from explore_space_pca()

## Value

a wrapper for drawing the last interpolation points of each iteration in explore_space_pca()

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