Expected Proportion of Variance Explained by the Regression Model Use this option to specify a value for the expected proportion of the total variance explained by the regression model. Refer to the BGLR R Package documentation for further details. To Specify the Expected Proportion of Variance: Either enter 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 Rescale Slider from the pop-up menu. Change the upper or lower boundaries in the window that appears, to rescale the slider and click OK.