Returns the Fisher transformation at x. This transformation produces a function that is approximately normally distributed rather than skewed. Use this function to perform hypothesis testing on the correlation coefficient.
X—is a numeric value for which you want the transformation.
- If x is nonnumeric, FISHER returns the #VALUE! error value.
- If x £ -1 or if x ³ 1, FISHER returns the #NUM! error value.
The equation for the Fisher transformation is:
FISHER(0.75) equals 0.972955