Name
REGR_SLOPE — Returns the slope of the line.
Synopsis
numeric REGR_SLOPE ( |
in expr1 any , |
in expr2 any ); |
Description
REGR_SLOPE returns the slope of the line. After the elimination of null (expr1, expr2) pairs, it makes the following computation:
COVAR_POP(expr1, expr2) / VAR_POP(expr2)
Parameters
expr1
Number expression.
expr2
Number expression.
Return Types
The function returns a value of type NUMERIC. If the function is applied to an empty set, then it returns null.