This is a text function that appends the values of a single attribute across the episodes of a case together, with one value per line, and blank values skipped. It is mostly used in building reports for data mining applications. For example, suppose we had the following case fragment:

              01 Jun 09    20 Jun 09    30 Jun 09    15 Oct 09    02 Nov 09
Destination      Hanoi                     Florence     New York     Wollongong

Then the expression: list of Destination values would evaluate to:

Hanoi
Florence
New York
Wollongong