Extract directional search points during the optimisation
get_dir_search(dt, ratio = 5, ...)a data object collected by the projection pursuit guided tour optimisation in the tourr package
numeric; a buffer value to deviate directional search points from the anchor points
arguments passed to compute_pca()
a tibble object containing the directional search bases in pseudo derivative search
Other get functions:
get_anchor(),
get_basis_matrix(),
get_best(),
get_interp_last(),
get_interp(),
get_interrupt(),
get_search_count(),
get_search(),
get_space_param(),
get_start(),
get_theo()
holes_1d_geo %>%
compute_pca() %>%
purrr::pluck("aug") %>%
get_dir_search()
#> # A tibble: 330 × 16
#> basis index_val info method alpha tries loop id row_num PC1 PC2
#> <list> <dbl> <chr> <chr> <dbl> <dbl> <dbl> <dbl> <int> <dbl> <dbl>
#> 1 <dbl[…]> 0.749 direc… PD NA 2 1 2 2 -1.80 -0.776
#> 2 <dbl[…]> 0.749 direc… PD NA 2 1 3 3 -1.77 -0.601
#> 3 <dbl[…]> 0.749 direc… PD NA 2 1 4 4 -1.79 -0.632
#> 4 <dbl[…]> 0.749 direc… PD NA 2 1 5 5 -1.78 -0.745
#> 5 <dbl[…]> 0.749 direc… PD NA 2 1 6 6 -1.80 -0.562
#> 6 <dbl[…]> 0.749 direc… PD NA 2 1 7 7 -1.77 -0.815
#> 7 <dbl[…]> 0.749 direc… PD NA 2 1 8 8 -1.73 -0.732
#> 8 <dbl[…]> 0.749 direc… PD NA 2 1 9 9 -1.84 -0.644
#> 9 <dbl[…]> 0.749 best_… PD NA 2 1 10 10 -1.78 -0.804
#> 10 <dbl[…]> 0.749 direc… PD NA 2 1 11 11 -1.79 -0.573
#> # … with 320 more rows, and 5 more variables: PC3 <dbl>, PC4 <dbl>, PC5 <dbl>,
#> # anchor_x <dbl>, anchor_y <dbl>