If you want to specify 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. The WEIGHT variable can take nonintegral values.
An observation is used in the analysis only if the value of
the WEIGHT variable is greater than zero.
- WEIGHT variables ;
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