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XLeratorDB/statistics Documentation

SQL Server FISHER function


FISHER

 
Updated: 09 August 2010

Use FISHER to calculate the Fisher transformation at x. The equation for the Fisher transformation is:
 
 FISHER
Syntax
SELECT [wctStatistics].[wct].[FISHER] (
   <@X, float,>)
Arguments
@X
is the value for which you want the transformation. @X is an expression of type float or of a type that can be implicitly converted to float
 
Return Types
float
Remarks
·         If @X is less than or equal to -1 or greater than or equal to 1, FISHER returns an error.
·         FISHER(@X) = ATANH(@X)
Examples

Select
wct.FISHER(.75)
 

This produces the following result
----------------------
0.972955074527657
 
(1 row(s) affected)
 

select
wct.ATANH(.75)
 

This produces the following result
----------------------
0.972955074527657
 
(1 row(s) affected)


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