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where n is the sample size.
Let n represent the sample size and X_{(i)} represent the ith order statistic. Then, when n is odd, the STDMED function calculates , where
If n is even, the function calculates the square root of the following:
where
For more details, refer to David (1981), Kendall and Stuart (1977, 252), and Sarhan and Greenberg (1962).
data; do n=6 to 12; s=stdmed(n); put s; output; end; run;
The statements produce these values:
0.4634033519 0.4587448763 0.410098592 0.4075552495 0.3719226208 0.3703544701 0.3428063408
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