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# Outliers

There is no rigid mathematical definition of what constitutes an outlier; determining whether or not an observation is an outlier is ultimately a subjective exercise.

Outliers is described in multiple online sources, as addition to our editors' articles, see section below for printable documents, Outliers books and related discussion.

## Suggested Pdf Resources

Outliers
These points are called outliers, i.e. extreme values of observed variables Suspicious correlations sometimes indicate the presence of outliers.
LOF: Identifying Density-Based Local Outliers
E-commerce, finding the rare instances or the outliers, can be more interesting than lier detection regards being an outlier as a binary property.
Long-Term Care Hospital Prospective Payment System: High Cost
high cost outliers under the LTCH Prospective Payment System (LTCH PPS).
Package 'outliers'
Jan 24, 2011 Package 'outliers'. January 24, 2011. Version 0.
A Review of Statistical Outlier Methods
Statistical outlier detection has become a popular topic as a result of the US.

## Suggested News Resources

It's the Economy Again
The trends in the two regional Fed surveys tend to track one other and the national PMI data closely over time, albeit with plenty of outliers.
The Height Equation
â€œSo given the 'average' genetic composition of a population for height and computing, where the outliers lie is a matter of knowing the genetics better. If we knew the genetics better, then we could perhaps compute the upper â€” and lower â€” limit.
Which Track-and-Field Record Is the Toughest?
To assess which track-and-field performances are the biggest outliers, the Count compared every world-record time and distance currently on the books to the second-best performer's marks.
Map Proves You Are Paying Too Much For Marijuana
Cricket - the outlier of outliers
Will we have seen Tendulkar make his 100th international hundred (he was out for 1 off only 8 balls in India's first innings), and so become, statistically, unique, an extreme, a one-and-only, an outlier?

## Suggested Web Resources

Amazon.com: Outliers: The Story of Success (9780316017923
Outlier - Wikipedia, the free encyclopedia
In statistics, an outlier is an observation that is numerically distant from the rest of the data.
Outliers (book) - Wikipedia, the free encyclopedia