A transformation list is a collection of transformation records. When a new transformation record is added, it is appended to the top of the transformation list. You can use any of the following methods to build a transformation list:
The SET_TRANFORM procedure in DBMS_DATA_MINING_TRANSFORM
The STACK interface in DBMS_DATA_MINING_TRANSFORM
The GET_MODEL_TRANSFORMATIONS and GET_TRANSFORM_LIST functions in DBMS_DATA_MINING