Specify the number of predictor variables to select from among all of the predictor variables specified on the General tab. By default, 10 predictor variables are specified.
Either highlight the existing number of variables and type the desired value in the text field or move the slider to the right or to the left to change the value.Tip: To change the scale of the slider, right-click on the slider and select from the pop-up menu. Change the upper and/or lower boundaries in the window that appears, to rescale the slider and click .