Split-Plot Designs with Few Whole Plot Factors Containing Clear Effects

Fractional factorial split-plot designs are widely used when it is impractical to perform fractional experiments in a completely random order. When there too many subplots per whole plot, or few plots, with replicated settings of the plot factors preferred. However, such an important study undeveloped literature. This paper considers WP from viewpoint clear effects. We investigate sufficient and necessary conditions for this class have An algorithm proposed generate desirable which most effects interest. The design analysed results discussed.