Kernel functions for distance weighting
Examples
values_weight_func
#> [1] "rectangular" "triangular" "epanechnikov" "biweight"
#> [5] "triweight" "cos" "inv" "gaussian"
#> [9] "rank" "optimal"
weight_func()
#> Distance Weighting Function (qualitative)
#> 10 possible values include:
#> 'rectangular', 'triangular', 'epanechnikov', 'biweight', 'triweight', '...