Returns the inverse of the Fisher transformation for a specified value.
This function works the same in Google Sheets as it does in Excel — same syntax and arguments.
FISHERINV(y)The Fisher transformation is used to normalize the distribution of the correlation coefficient. This function reverses that transformation, allowing you to convert a transformed value back into a correlation coefficient.
=FISHERINV(0.5)Result: 0.462117
Calculates the inverse Fisher transformation for the value 0.5.
It is primarily used to perform hypothesis testing on correlation coefficients by transforming them into a normally distributed variable.