This enum describes transition types.
| Enumerator | 
|---|
| TT_UNDEFINED | Undefined.  | 
| TT_SUM | formula will calculate sum of similar (located at the same index) data points for all input series.  | 
| TT_DIFF | difference  | 
| TT_HIGH | high value (max)  | 
| TT_LOW | low value (min)  | 
| TT_MULTIPLY | multiply  | 
| TT_DIVIDE | divide  | 
| TT_AVERAGE | average  | 
| TT_DIFF_ABS | difference (absolute value)  |