Fisher transformation

Returns the Fisher transformation at x. The Fisher transformation yields a normally-distributed function, as opposed to a skewed one. It is used to perform hypothesis-testing on the correlation coefficient.

Syntax

Fisher (x)

Where:

x is the number for which the transformation is sought.

Expression

Usage Notes

The following conditions are invalid:

• x is nonnumeric.
• x £ -1 or x ³ 1.