nx_doe.nx

nx_doe.nx -- FOOD-SCIENCE SUITE / DESIGN OF EXPERIMENTS rung. Closes the DOE behind-axis (where Minitab/JMP lead): 2^k full-factorial and 2^(k-p) fractional-factorial designs, with main effects and interaction effects computed from the coded (-1/+1) sign matrix -- the same estimator Yates' algorithm produces, done in exact integer arithmetic. Standard (Yates) run order: factor j's coded level in run i is +1 iff bit j of i is set, else -1. A main effect = (2/N) * sum(sign_j(i)*y_i); an interaction effect uses the product of the two factors' signs. All INTEGER (responses integer; effects are exact when N | 2*sum). THE exceed vs the field: not depth over Minitab, but the SAME factorial estimator, sovereign + composable with the rest of the food-science suite (optimize a ferment or a formulation and feed the winner straight into the flavor/nutrition organs). grounded: box_hunter_hunter_2k_factorial + yates_algorithm_effects genealogy_id: design_of_experiments + nishi_food_science_suite