The macro parameters are either numeric or character. Numeric parameters can be
numeric constants or numeric variable column names associated with your data.
Similarly, character parameters can be character column names.
When you specify variable names for macro parameters, the DATA step for the
annotation data set must read the observations from your data. This enables you to plot a
series of labels, arrows, or other annotation based on the values in the second data set.
For an example of using variable names, see “Example: Create Custom Labels” on page
1082.
Dictionary ...
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