apache/hive — pull request #24 by MarcinKosinski (2014-12-01 22:40:10+00:00)
Title: How to calculate the Kendall coefficient of correlation of a pair of a numeric columns in the group?

In this [wiki page](https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF) there is a function `corr()` that calculates the Pearson coefficient of correlation, but my question is that: is there any function in Hive that enables to calculate the Kendall coefficient of correlation of a pair of a numeric columns in the group?