| build_G | Build a generator matrix for theorem-based row-column designs |
| eval_2fi_from_design | Evaluate unconfounded main effects and two-factor interactions |
| generate_2fi_optimal_rowcol | Generate a 2FI-optimal row-column factorial design |
| generate_2fi_rowcol | Generate a row-column design for main effects and two-factor interactions |
| generate_row_column_design | Generate the row-column treatment layout from a generator matrix |
| search_2fi_optimal_G_k23 | Search for prime-level generator matrices for k = 2 or k = 3 |