To the best of my knowledge, you cannot conduct as per your design layout. Because you could not be obtained this layout in Taguchi design. Therefore, use the approximate design layout of L18(6^1 3^2) i.e., 3 factorials, two of them with 3 levels and one is 6 levels. The procedures are depicted below.
All Factors should be on same level for the regression analysis that is in builtin the Taguchi in the Minitab software for the generation of the results
YOUR SUGGESTION is USELESS for solving the QUESTION """" I have 3 factors, two of them with 3 levels and one with 5 levels, how I can solve by using Taguchi design method? """"
Hello, I have 6 factors, three of them with 2 levels, 1 factor 5 level, and 2 factors 4 levels. How to design a mixed Taguchi experiment? Mohsin Iqbal Qazi