add_patch ( circle ) dx , dy = X_noisy_value [ point_idx ] - X_walker [ point_idx ] ax .
arrow ( X_walker [ point_idx , 0 ], X_walker [ point_idx , 1 ], dx , dy , color = plot_text_color , linewidth = 0.8 , length_includes_head = True , head_width = arrow_head_width , head_length = arrow_head_width ) ax .
kdeplot ( x = x_draws , y = y_draws , levels = 3 , color = point_color , linewidths = 0.9 , fill = False , ax = ax ) ax .
scatter ( X_walker [ point_idx , 0 ], X_walker [ point_idx , 1 ], marker = " x " , color = point_color , s = 34 , linewidth = 1.1 ) ax .
tick_params ( axis = " both " , which = " both " , bottom = False , left = False , top = False , right = False , labelbottom = False …