Unique

Unique

Returns a category list with any duplicate categories removed.

Syntax

Unique(Val)

Parameter

Val

Type: Categorical

Categorical value.

(return)

Type: Categorical

The categories in Val, but with any duplicates removed.

Remarks

If the current value is NULL, Val is an empty Categorical value ({}) and the return value is also an empty Categorical value.

Note that Val cannot consist of a category expression.

Examples

Function call	Q1	Result
Q1.Unique()	{5,1,6,4,3,5,2,4}	{5,1,6,4,3,2}
Unique(Q1)	{3,1,2}	{3,1,2}