The FISHER function returns the Fisher transformation at x. This transformation produces a Function that is normally distributed rather than skewed. Use this function to perform hypothesis testing on the correlation coefficient.
The FISHER function syntax has the following arguments:
X: Required. A numeric value for which you want the transformation.
Example: Let’s look at some Excel FISHER function examples and explore how to use the FISHER function as a worksheet function in Microsoft Excel:
Based on the Excel spreadsheet above, the following FISHER examples would return:
- If x is nonnumeric, FISHER returns the #VALUE! error value.
- If x ≤ -1 or if x ≥ 1, FISHER returns the #NUM! error value.
The equation for the Fisher transformation is: