Numeric Value Function
<numeric_value_function> ::=
AGGREGATE(<set> [, <numeric_value_expression>])
| AVG(<set>[, <numeric_value_expression>])
| CORRELATION(<set> [, <numeric_value_expression>]
[, <numeric_value_expression>])
| COVARIANCE(<set>[, <numeric_value_expression>
[, <numeric_value_expression>])
| COUNT(<set>[, INCLUDEEMPTY])
| LINREGINTERCEPT(<set>[, <numeric_value_expression>
[, <numeric_value_expression>])
| LINREGPOINT(<numeric_value_expression>, <set>,
<numeric_value_expression> [, <numeric_value_expression>])
| LINREGR2(<set>, <numeric_value_expression>
[, <numeric_value_expression>])
| LINREGSLOPE(<set>[, <numeric_value_expression>
[, <numeric_value_expression>])
| LINREGVARIANCE(<set>, <numeric_value_expression>
[, <numeric_value_expression>])
| MAX(<set>[, <numeric_value_expression>])
| MEDIAN(<set>[, <numeric_value_expression>])
| MIN(<set>[, <numeric_value_expression>])
| RANK(<tuple>, <set>)
| STDEV(<set>[, <numeric_value_expression>])
| SUM(<set>[, <numeric_value_expression>])
| VAR(<set>[, <numeric_value_expression>])