The data type, format, and title for REGR_AVGY(y, x) are as follows.
Data type: REAL
- If the operand is character, the format is the default format for FLOAT.
- If the operand is numeric, date, or interval, the format is the same format as y.
- If the operand is a UDT, the format is the format for the data type to which the UDT is implicitly cast.