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Archives: November 2014

Outlier Detection with SQL Server, part 3.1: Grubbs’ Test


By Steve Bolton

…………In the last two installments of this series of amateur self-tutorials, I mentioned that the various means of detecting outliers with SQL Server might best be explained as a function of the uses cases, the context determined by the questions one chooses to ask of the… Read more

2 comments, 8,490 reads

Posted in Multidimensional Mayhem on 29 November 2014

Outlier Detection with SQL Server, part 2.2: Modified Z-Scores

By Steve Bolton

…………There are apparently many subtle variations on Z-Scores, a ubiquitous measure that is practically a cornerstone in the foundation of statistics. The popularity and ease of implementation of Z-Scores are what made me decide to tackle them early on in this series of amateur self-tutorials, on… Read more

0 comments, 1,445 reads

Posted in Multidimensional Mayhem on 13 November 2014