Create a Formula | JMP 13.2

JMP Support 800.450.0135 (US)

Documentation Feedback
Your feedback is important to us. us any comments about our documentation.

Using JMP • Formula Editor • Create a Formula

•

Create a Formula

A formula is an expression stored in a column that performs operations in order to insert values into that column. Formulas can perform mathematical operations, such as addition and multiplication, or they can compare column values or join values by referring to other areas in the same data table. Formulas can consist of any JMP Scripting Language (JSL) command. Once you insert a formula into a column, the column is locked: its values can be edited only by changing or removing the formula.

There are three basic steps to building a formula:

1.

Open the Formula Editor by right-clicking the column name to which you want to apply the formula and selecting Formula.

Double-click the column name to which you want to apply the formula, select Formula from the Column Properties menu, and then click Edit Formula.

In the Formula Editor, the empty formula is selected (highlighted in blue). You can start typing or select a column or function.

–

When you type, a small text editor window appears, which enables you to edit the formula. You can click the Maximize editor button

if you need more room. Long formulas open in the maximized editor by default.

–

When you select a column or function, that item is added to the selected blue box.

–

You can also drag a column from the Columns list into the selected box.

Note: An element is selected when there is a blue outline around it. All terms within the smallest nesting box relative to the place that you clicked become selected. The subsequent actions apply to those combined elements.

2.

Add expressions, functions, and terms. Then they appear in the highlighted blue box. The following sections in this chapter provide detailed instructions on how to add constants, elements, operators, and functions.

Building a Formula

See Use Basic Formula Editor Features, for an example of how to use the Formula Editor.

Notes:

•

In a formula, when you reference a column using value labels, place your cursor over the value label to see the actual data value.

•

Whitespace in a formula is automatically removed by JMP.

•

You can also use the Formula Editor to define a custom format. For example, you might want to convert a number from inches to centimeters using the calculation Char( :height * 2.54 ) || " cm". Realize that the underlying data, which you see when double-clicking a data table cell, would still be the value of :height.

•

Help created on 9/19/2017