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.



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 ≥ 1, FISHER returns the #NUM! error value.
  • The equation for the Fisher transformation is:



The example may be easier to understand if you copy it to a blank worksheet.

ShowHow to copy an example

  • Create a blank workbook or worksheet.
  • Select the example in the Help topic.

 Note   Do not select the row or column headers.

Selecting an example from Help

Selecting an example from Help
  • Press CTRL+C.
  • In the worksheet, select cell A1, and press CTRL+V.
  • To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.
Formula Description (Result)
=FISHER(0.75) Fisher transformation at 0.75 (0.972955)
Applies to:
Excel 2007