From help-octave-request at bevo dot che dot wisc dot edu Wed Mar 29 01:54:32 2000 Subject: Taguchi Method From: David DS Barnes To: help-octave at bevo dot che dot wisc dot edu Date: Wed, 29 Mar 2000 07:54:39 +0100 Hi, I have recently begun working with octave, and wondered if anybody has developed a function for creating the "orthogonal array" that is used in the Taguchi Method? if it helps (and I am not insulting), the Taguchi Method involves: a) deciding on C parameters which drive some performance b) deciding on B levels for each parameter c) a vector of performance tests of size A the "orthogonal array" determines A ... and this is the function I am looking for. I include two examples given to me below: ===================================== B = 2, C = 7 (A = 8) A | C | result | a b c d e f g | --------|---------------------------------------|-------------- 1 | 1 1 1 1 1 1 1 | y1 2 | 1 1 1 2 2 2 2 | y2 3 | 1 2 2 1 1 2 2 | y3 4 | 1 2 2 2 2 1 1 | y4 5 | 2 1 2 1 2 1 2 | y5 6 | 2 1 2 2 1 2 1 | y6 7 | 2 2 1 1 2 2 1 | y7 8 | 2 2 1 2 1 1 2 | y8 ===================================== B = 3, C = 4 (A = 9) A | C | result | a b c d | --------|-------------------------------|-------------- 1 | 1 1 1 1 | y1 2 | 1 2 2 2 | y2 3 | 1 3 3 3 | y3 4 | 2 1 2 3 | y4 5 | 2 2 3 1 | y5 6 | 2 3 1 2 | y6 7 | 3 1 3 2 | y7 8 | 3 2 1 3 | y8 9 | 3 3 2 1 | y9 ===================================== I hope I have not abused the system :) David -- David DS Barnes mechanical eng,imperial college | t:0171 594 7181 exhibition rd, london, sw7 2bx | f:0171 594 7127 ----------------------------------------------------------------------- Octave is freely available under the terms of the GNU GPL. Octave's home on the web: http://www.che.wisc.edu/octave/octave.html How to fund new projects: http://www.che.wisc.edu/octave/funding.html Subscription information: http://www.che.wisc.edu/octave/archive.html -----------------------------------------------------------------------