In Two Dimensions
To explore two-dimensional relationships, plot all variables pairwise in a scatter plot matrix. When you find a plot of interest, zoom in to explore it in more detail.
Brushing Observations in Scatter Plot Matrix
Zooming In on a Plot
You can adjust axes, set marker sizes, and point and click to identify unusual observations. To explore correlations, use mean or prediction confidence ellipses. Calculate the correlation matrix or p-values of the correlations to confirm numerically the relationships you find visually.
Confidence Ellipses and Correlations
To visualize ordered data, create overlaid line plots. Set line patterns and widths to improve printed output.
Overlaid Line Plot
To explore categorical data, create mosaic plots. In all graphs, you can double-click on observations to examine their values.
Examining a Category in a Mosaic Plot
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