# FISHER

Spread for WinForms provides advanced software components that support Excel import/export, full cell customization, an extensive calculation engine with over 450 functions and more, all with zero dependencies on Excel.

## Content



This function returns the Fisher transformation for a specified value.

## Syntax

FISHER(*value*)

## Arguments

Provide a numeric value that is less than 1 and greater than –1 for which you want the transformation.

## Remarks

This transformation produces an approximately normal distribution. Use this function to perform hypothesis testing on the correlation coefficient.
The Fisher transformation is calculated as follows:
![FISHER Equation](https://cdn.mescius.io/document-site-files/images/0ed25d3e-6b2a-4cf0-8f1b-7ed5ab18cf12/artwork/func-fisher.png)

where x is the *value* argument.

## Data Types

Accepts numeric data. Returns numeric data.

## Examples

`FISHER(A43)`
`FISHER(R4C12)`
`FISHER(-0.65)` gives the result -0.7752987062

## Version Available

This function is available in product version 1.0 or later.

## See Also

[FISHERINV](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsDtoG/FunctionFISHERINV) \| [Statistical Functions](/spreadnet/docs/latest/online-formula/formulas-overview/formulas-functs/formulas-functtypes/formulas-functsstats)