I think that linck should be here: http://www.win-vector.com/blog/2014/01/use-standard-deviation-not-mad-about-mad/ http://www.win-vector.com/blog/2014/01/use-s

I think that linck should be here: http://www.win-vector.com/blog/2014/01/use-standard-deviation-not-mad-about-mad/ http://www.win-vector.com/blog/2014/01/use-standard-deviatio...