WEIGHTED AVERAGE ABSOLUTE VALUEName:
where X is the response variable and W is the weights variable. The response variable and weights variable must have the same number of observations.
For this command, the weights are not normalized. However, at least one of the weights must be positive and none of the weights can be negative. Otherwise, an error message is reported.
where <x> is the response variable;
<w> is the weights variable;
<par> is a parameter where the weighted average absolute value is saved;
and where the <SUBSET/EXCEPT/FOR qualification> is optional.
LET A = WEIGHTED AVERAGE ABSOLUTE VALUE Y1 WEIGHT SUBSET Y1 > 0
LET Y = DATA 2 3 -5 7 11 13 -17 19 23 LET W = DATA 1 1 0 0 4 1 2 1 0 . LET A = WEIGHTED AVERAGE ABSOLUTE VALUE Y WThe returned value is 11.5
Date created: 06/29/2012