Development of a piecemeal regression-based approach for monitoring multiple linear profiles with phase interactions
Volume 6, Issue 4, Winter 2017, Pages 237-249
majid Jalili, Mahdi Bashiri, Manouchehr Manteghi, Ali Asghar Tofigh
Abstract In many statistical process control applications, the relationship between a response variable and one or more control variables is evaluated by a function called a profile. Profiles are divided into different types according to the nature of the response variable, such as linear and nonlinear profiles. In this research, a new control diagram based on the generalized linear test approach and fractional regression is presented to monitor multiple linear profiles with interactions in phase 2. The simulation results of the proposed control diagram show its much better performance than the control diagram based on the least squares error method.