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Marking Observations |
You can set the marker shape for any observations you select.
Open the GPA data set. |
Create a scatter plot of SATM versus SATV. |
Use the techniques described in Chapter 5, "Exploring Data in Two Dimensions."
Click on an observation to select it. |
Choose Edit:Windows:Tools. |
This toggles the display of the tools window,
as shown in Figure 10.4.
Figure 10.3: Edit:Windows Menu
Click on the upward-pointing triangle in the tools window. |
This changes the marker for the selected observation from a
square to a triangle. The marker also changes to a triangle
in the data window and in any other windows.
Similarly, you can select a group of observations in a
brush and assign markers for the group. Markers provide a
convenient way to track observations across multiple windows.
They also enable you to keep track of observations when they
are deselected.
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