The Scree Plot tab is shown below:The Scree Plot tab contains the following elements:This scree plot for the principal components from the linear-bilinear model plots the eigenvalue by principal component in red with the eigenvalue represented on the left-hand y -axis, and the cumulative proportion explained by the PCs in blue and represented on the right-hand y -axis. This plot can give you an idea of the number of principal components that are needed to explain most of the variance .See Scree Plot for more information.