Example: Label Observations
In this example, you label observations in a scatter plot according to values of a third variable.
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Open the
Hurricanesdata set and create a scatter plot ofwind_ktsversusmin_pressure.The scatter plot appears. (See Figure 9.14.)
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Click an observation.
The selected observation is labeled by its position in the data table.
Figure 9.14: A Scatter Plot
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Right-click near the center of the plot, and select from the pop-up menu.
The Plot Area Properties dialog box appears. (See Figure 9.15.)
Figure 9.15: The Observations Tab
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Select from the list.
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Click .
The label for the selected observation updates, as shown in Figure 9.16. If you click subsequent observations, each label displays a storm name.
Figure 9.16: Labeling Only Selected Observations
Note: When you select on the Plot Area Properties dialog box, it only affects the scatter plot to which the dialog box belongs. If you create a second plot, that new plot defaults to using observation numbers to label observations.
You can also set a default label variable that is used for all plots. In the data table, right-click a variable heading. Select from the pop-up menu, as shown in Figure 9.17. The values of the selected variable are displayed when you click observations in a plot (unless that plot overrides the default).
Figure 9.17: The Variables Menu
