Factorial Plots - Graphs
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Stat > DOE > Response Surface > Factorial Plots > Graphs

Display factorial plots to illustrate main effects and interaction effects.

Dialog box items

Main effects plot: Check to display a main effects plot.

Interaction plot: Check to display an interaction plot. This plot creates a single interaction plot for two variables, or a matrix of interaction plots for three or more variables. You must have 2 or more variables to use this plot.

Display lower left matrix: Choose to display one plot for each pair of variables.

Display full interaction matrix: Choose to display both plots for each pair of variables, such as Variable 1 by Variable 2 and Variable 2 by Variable 1. Sometimes you can identify interactions more easily when you examine both plots.