# Manuals/calci/FISHER

**FISHER (Number)**

- is the value to find the Fisher transformation.
- FISHER(), returns the Fisher transformation.

## Description

- This function gives the value of Fisher Transformation for the given number.
- Fisher Transformation is used to test the hypothesis of two correlations.
- It is mainly associated with the Pearson Product-Moment Correlation coefficient for bi-variate normal observations.
- In , is the value which ranges between -1 to +1.
- The transformation is defined by :

where is the natural logarithm function and is the Inverse Hyperbolic function.

- This function will give the result as error when:

1. is non-numeric 2. or .

## ZOS

- The syntax is to calculate FISHER in ZOS is .
- is the value to find the Fisher transformation.

- For e.g.,FISHER(0.1..0.4..0.1)

## Examples

- FISHER(0.5642) = 0.6389731838284958
- FISHER(0)= 0
- FISHER(-0.3278) = -0.3403614004970268
- FISHER(1) = Infinity
- FISHER(-1) = -Infinity

## Related Videos

## See Also

## References