In the top box of the dialog box you can enter a descriptive label for the variable.   

Next the variable is displayed, or the formula in case of a derived variable.  E.g. if you have a variable 

named LENGTH containing the length of patients in meters, and you have another variable WEIGHT 

containing the weight of patients in kilograms, then you can complete the dialog box as follows to obtain a 

new variable containing the Body Mass Index. 

Label: 

Body Mass Index 

Formula: WEIGHT/POWER(LENGTH,2) 

When entering the formula, you can select variables and functions from the respective lists. 

Edit selection criteria list 

After you have entered a selection criterion in a dialog box (in order to include only a selected subgroup of 

cases in the statistical analysis), this selection criterion will be `remembered' by the program and put in the 

selection criteria list. 

When you want to edit this list, select the Edit selection criteria list, and you obtain the following dialog box: 

At the left side of the dialog box, the selection criteria list is displayed.   

Select 

N

EW

 when you want to create a new Selection criterion in the Selection criterion editor dialog box.  

In this dialog box, you can enter the formula for the new selection criterion, and/or you can enter a 

descriptive label for it.  This editor box is similar to the Variable editor dialog box described on p. 39. 

When a selection criterion is selected in the left box, you can select the 

E

DITOR

 button to call the Selection 

criterion editor dialog box.  

You can select one or more selection criteria in the list and next select the 

R

EMOVE

 button to remove the 

selected items from the list. 

When you select the 

C

LEAR LIST

 button, the entire list will be cleared. 

40