## WEIGHT Statement

**WEIGHT** * variable ***;**

To use relative weights for each observation in the input
data set, place the weights in a variable in the data set
and specify the name in a WEIGHT statement.
This is often done when the variance associated with each
observation is different and the values of the WEIGHT
variable are proportional to the reciprocals of the variances.
If the value of the WEIGHT variable is missing or is less
than zero, then a value of zero for the weight is assumed.
The WEIGHT and FREQ statements have a similar effect except that
the WEIGHT statement does not alter the degrees of freedom.

Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.