When using value range variables you can also use an Attribute algorithm in addition. A frequent application is the use of an IF condition, to make the value range conditional upon the value of a certain variable.

In the following example an attribute algorithm has been used for the variable L1:^[60]

IF( FORM1 .EQ. 1) THEN 
L1 ='100,[1:6000]'
ELSE L1 ='100,[1:2000]'
ENDIF

If the variable FORM1 has the value 1, then the value range of L1 is from 1 to 6000 with a default value of 100, otherwise the value range is from 1 to 2000.

The figure shows the selected variable "L1" with Status "Attribute algorithm" in the Variable Manager.^[61]

The variable FORM1 is a Variable with fixed values. Here in the example it has the value 1 or 2. On this variable, the condition is focused.

The variable L is defined as Value range variable. It references the variable L1, which contains the attribute algorithm (see above).