2005 Volume 13 Issue 3 Pages 5-10
Taguchi methods without Schmidt expansion are introduced here. The methods require to select unit space members that all members of the group must have same or almost same output. The average output value of the unit group and average value of each variable are subtracted from each member of signal. Using the relation between variable values and output of signals we estimate the slope β and S/N ratio η to obtain an overall estimate the true value of output of each signal member. Finally we can calculate S/N ratio of the overall prediction.