Factor Analysis - Graphs
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Stat > Multivariate > Factor Analysis > Graphs

Displays a Scree plot, and score and loading plots for the first two factors.

To create simple loading plots for other factors, store the loadings and use Graph > Scatterplot. If you want to connect the loading point to the zero point, add a zero to the bottom of each column of loadings in the Data window, then add lines connecting the loading points to the zero point with the graph editor. See graph editing overview.

Dialog box items

Scree plot: Check to display a Scree plot (eigenvalue profile plot). Minitab plots the eigenvalue associated with a factor versus the number of the factor.

Score plot for first 2 factors: Check to plot the scores for the second factor (y-axis) versus the scores for the first factor (x-axis). Scores are linear combinations of your data using the coefficients. To create plots for other factors, store the scores and use Graph > Scatterplot. (Note: Scores must be calculated from raw data, therefore this graph can not be generated if the Use matrix option is selected. See <Options>.)

Loading plot for first 2 factors: Check to plot the loadings for the second factor (y-axis) versus the loadings for the first factor (x-axis). A line is drawn from each loading to the (0, 0) point.

Biplot for first 2 factors: Check to plot an overlay of the score and loading plots for the first two components.