Updated: 09 August 2010

Use FISHER to calculate the Fisher transformation at *x*. The equation for the Fisher transformation is:

SELECT [wctStatistics].[wct].[FISHER] (

<@X, float,>)

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**.

float

· If *@X *is less than or equal to -1 or greater than or equal to 1, FISHER returns an error.

· FISHER(*@X*) = ATANH(*@X*)

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)