Definition:Fisher's z-Transformation
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Definition
Fisher's $z$-transformation is a transformation of the sample estimate $r$ of a bivariate normal correlation coefficient to $z = \arctan r$ so as to give a better approximation to a normal distribution.
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Also see
- Results about Fisher's $z$-transformation can be found here.
Source of Name
This entry was named for Ronald Aylmer Fisher.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Fisher's $z$-transformation
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Fisher's $z$-transformation