Parameters | Expression Parameters | Label Variable

Label Variable
Use this field to specify the variable from the input data set that is used to label all points in the plots.
To Specify a Label Variable:
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All of the variables in the specified input data set are displayed in the Available Variables field.
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Click to add the highlighted variable to the Label Variable field, as shown below:
Example
The figure below is part of a scatterplot matrix generated during a principal components analysis of the Nicardipine data set. Mousing over any of the points calls up a text box revealing the identity of the point as defined by the value in the label variable .