← Combinatorial
Orthogonal Arrays
Standard Taguchi orthogonal arrays — pre-calculated, perfectly balanced designs in which every pair of factors is covered equally often. Pick an array to view its runs-by-factors table.
L4(2^3) — 4 runs, 3 factors, 2 levels, strength 2. The smallest useful 2-level array: 3 two-level factors in 4 runs.
| Run | F1 | F2 | F3 |
|---|---|---|---|
| 1 | 0 | 0 | 0 |
| 2 | 1 | 0 | 1 |
| 3 | 0 | 1 | 1 |
| 4 | 1 | 1 | 0 |
Levels are shown 0-based (0…1). Map each factor column to one of your test parameters and each level to one of its values.