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This function returns the inverse of the Fisher transformation for a specified value.
FISHERINV(value)
[Required] The argument is the specified numeric value.
Use this transformation when analyzing correlations between ranges or arrays of data. This function calculates the inverse of the Fisher transformation, so if y = FISHER( x ), then FISHERINV( y ) = x .
The inverse Fisher transformation is calculated as follows:

where y is the value argument.
FISHERINV(A43)
FISHERINV(R4C12)
FISHERINV(0.56) gives the result 0.5079774329