standardization

Robust Statisticians recommendends to standardize using e.g. 
(X - median(X)) / ( MAD(X) / 0.675 ) 

Make that (X - median(X))/mad(X)

The constant is already in mad()


-- Bert Gunter
Genentech Non-Clinical Statistics
South San Francisco, CA
 
"The business of the statistician is to catalyze the scientific learning
process."  - George E. P. Box