static ProjectGrid< T > project(const SOM< ND, DistFunc > &som, InputIter begin, InputIter end, WeightFunc weight_func, AdderFunc adder_func, const T &init_cell=T{})
static ProjectGrid< T > project(const SOM< ND, DistFunc > &som, InputIter begin, InputIter end, WeightFunc weight_func, UncertaintyFunc uncertainty_func, AdderFunc adder_func, const T &init_cell=T{})