Minitab displays area by default for contour plots and area graphs. You can add area as a data display for histograms, scatterplots, and matrix plots.
You can add area to scatterplots, matrix plots, and histograms.
The projection direction is the direction in which the area extends on the graph. By default, the direction is toward the x-axis. However, you can change the projection direction for the area in scatterplots and matrix plots.