Using JMP - SAS

218 Formula Editor Chapter 7
Use Formula Editor Options
Ignore Errors
Once you construct a formula and click OK, JMP checks behind the formula for error and alerts you of any
errors that it finds. An error message appears for each error and asks whether you want to ignore further
errors.
Sometimes you might want to suppress error messages while a formula is under development. For example,
you might want the evaluated values for some rows without seeing an error message for each row that causes
errors.
To have JMP ignore any errors:
1. Create a formula.
2. Click the red triangle menu above the keypad and select Ignore Errors.
View a Formula’s Values from the Formula Editor
While in the Formula Editor, you can see the value of any expression within a formula with the Evaluate
command. For column variables, you get the value at row 1. This is also true for parameters and expressions
that evaluate to a constant value. To view values:
1. While in the Formula Editor, select the expression that you want to know about.
2. Right-click the selected expression.
3. Select Evaluate. The current value of the selected expression appears in a box until you move the cursor.
View a Formula in JSL
You have the option of entering or changing any part of a formula in text mode. Text mode displays the
formula in JMP Scripting Language (JSL). The entire formula (or any of its terms) appears in text mode
when you double-click the white space inside the boxed formula area. The elements of that box appear as
plain text and you can then edit the formula as you would in any text editor.
Any element of a formula can be displayed as a scripting command and then edited. After editing formula
scripting commands, click outside the formula to see its formatted form. For example, the text for the
standardization of weight is (:weight – Col Mean(:weight)) / Col Std Dev(:weight). To enter
an If statement in text form, add pairs of arguments for each If/Then clause in the statement, and a single
last argument for the else clause if needed. In text form, the If statement in Figure 7.8 looks like this:
If(:total!=0, (:count/:total)*100, 0).
Figure 7.8 An If Statement in Formula Mode