Manuals/calci/FISHERINV

FISHERINV(Number)

• $Number$ is the value to find inverse of fisher transformation.
  • FISHERINV(), returns the inverse of the Fisher transformation.

Description

• This function gives the inverse of the Fisher transformation.
• We use this to test the correlations between set of data.
• The Inverse of the Fisher transformation is: $x={\frac {e^{2y-1}}{e^{2y+1}}}$ i.e $y=FISHER(x)$, then $FISHERINV(y)=x$
• It can be used to construct a confidence interval.
• A confidence interval (CI) is a type of interval estimate of a population parameter and is used to indicate the reliability of an estimate.

This function will give the result as error when the $Number$ value is non-numeric.

ZOS

• The syntax is to calculate FISHERINV in ZOS is $FISHERINV(Number)$.
  • $Number$ is the value to find inverse of fisher transformation.
• For e.g.,FISHERINV(0.4521..0.507..0.01)

Inverse Fisher transformation

Examples

1. FISHERINV(0.6389731838) = 0.56419999998
2. FISHERINV(0) = 0
3. FISHERINV(0.1234) = 0.1227774315035342
4. FISHERINV(1) = 0.761594155955765
5. FISHERINV(-0.4296) = -0.4049869686465480

Related Videos

Sampling Distributions

See Also

• CORREL
• FISHER

References

Fisher Distribution

• List of Main Z Functions

• Z3 home