| Unit: | SDL_statis |
| Class: |
none |
| Declaration: |
function FisherTransform (x: double): double; |
The function FisherTransform
returns an approximately normally distributed value rather than skewed
one. The parameter x has to be in the range between -1 and +1, The parameter x theoretically has to be in the range between -1 and +1. Under practical circumstances - due to the limited resolution of floating point numbers - the valid range of x is between -0.9999999999999999 and +0.9999999999999999, values outside this range raise an ESDLStatisError exception.
| Hint: |
The Fisher transformation is typically used
for hypothesis testing on the correlation
coefficient. |
|