Using JMP - SAS

206 Formula Editor Chapter 7
Reference Columns and Table Variables
Figure 7.2 Building a Formula
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See “Use Basic Formula Editor Features” on page 222, for an example of how to use the Formula Editor.
Reference Columns and Table Variables
You can create a formula that refers to values found in other parts of the data table, such as other columns
and table variables.
When a formula uses values in other columns, the values in the column with that formula are dependent on
the values in those other columns. Whenever a column that the formula refers to changes, the dependent
column also changes. If you delete the referenced column, empty terms appear in the column containing the
formula.
If you create a formula that refers to values found in table variables, those table variables must already exist
in the data table. Table variables are character strings that are available to the entire table. Their names are
displayed in the table panel at the left of the data table. (For details, see “Use Table Variables” on page 122 in
the “Enter and Edit Data” chapter.)
To build a formula that references values found in columns or table variables:
1. Open the Formula Editor by right-clicking a column name in the data table and selecting Formula.
2. Select a box in the formula editing area by clicking it. (It is selected when there is a red outline
around it.)