|  | ## Generate Concatenation

#### Synopsis

Merges two attributes into a single new attribute by concatenating the values.

#### Description

This operator merges two attributes by simply concatenating the values and store those new values in a new attribute which will be nominal. If the resulting values are actually numerical, you could simply change the value type afterwards with the corresponding operators.

#### Input

- example set input: expects: ExampleSetMetaData: #examples: = 0; #attributes: 0

, expects: ExampleSet

#### Output

- example set output:
- original:

#### Parameters

- first attribute: The first attribute of this merger.
- second attribute: The second attribute of this merger.
- separator: Indicated a string which is used as separation of both values.
- trim values: Indicates if the two values should be trimmed, i.e. leading and trailing whitespaces should be removed, before the merge is performed.

#### ExampleProcess