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Chapter 9 Formula Editor 305
Using Functions
4 Select which function to insert in the formula. For descriptions of each function, see “Probability
Functions,” p. 472.
Computing Statistical Functions
There are two types of Statistical functions you can use in a formula:
• The functions with names that have the prefix Col. These functions compute statistics for a column
of numbers or expressions involving columns.
• The Mean, Std Dev, Number, Sum, Quantile, Maximum, Minimum, and N Missing functions.
These functions evaluate across columns or arguments. The statistic is computed for each row across
the series of arguments. You can use the insert key ( ) on the on-screen keypad, or type a comma
to add arguments to the functions that accept multiple arguments. When there are multiple
contiguous arguments, select the function and the first argument, and then Shift-click the last
argument in the group. These functions then automatically show with the complete list.
To create a formula containing a statistical function
1 Open the formula editor by right-clicking a column name in the data grid and selecting Formula.
2 Select an expression in the formula editing area by clicking it. (It is selected when there is a red
outline around it.)
3 Click the menu on the function browser and select Statistical, as shown in Figure 9.17. The
statistical functions now appear in the list below the menu.
Figure 9.17 Select Statistical from the Function Browser List
9Formulas
4 Select which function to insert in the formula. For descriptions of each function, see “Statistical
Functions,” p. 481.