Reference > Fathom Operators, Functions, and Units > Special Values

Special Values

caseIndex
A value equivalent to the case's row number in a case table. No parentheses are needed. It only makes sense when used as part of the formula of an attribute.
Example: modulo( caseIndex, 3) will yield {1, 2, 0, 1, 2} as values for the first five cases in a collection.
false
A constant whose value is always false.
π
You can enter the value for p by typing pi or by double-clicking the entry for pi under Special in the Functions list. On a Mac, you can produce π by typing Option+p.
true
A constant whose value is always true.

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