SUM Function

Returns the sum of the nonmissing arguments.

Category:

Descriptive Statistics

Syntax

SUM(argument,argument,... )

specifies a numeric constant, variable, or expression. If all the arguments have missing values, then one of the following occurs:

If you use only one argument, then the value of that argument is returned.
If you use two or more arguments, then a standard missing value (.) is returned.

Otherwise, the result is the sum of the nonmissing values. The argument list can consist of a variable list, which is preceded by OF.

The following SAS statements produce these results.

SAS Statement	Result
x1=sum(4,9,3,8);	24
x2=sum(4,9,3,8,.);	24
x1=9; x2=39; x3=sum(of x1-x2);	48
x1=5; x2=6; x3=4; x4=9; y1=34; y2=12; y3=74; y4=39; result=sum(of x1-x4, of y1-y5);	183
x1=55; x2=35; x3=6; x4=sum(of x1-x3, 5);	101
x1=7; x2=7; x5=sum(x1-x2);	0
y1=20; y2=30; x6=sum(of y:);	50