Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:mathematical_concept
|
| gptkbp:appliesTo |
gptkb:Pearson_correlation_coefficient
|
| gptkbp:category |
statistical transformation
|
| gptkbp:enables |
approximate normality of transformed values
|
| gptkbp:field |
gptkb:mathematics
statistics |
| gptkbp:form |
z = 0.5 * ln((1 + r) / (1 - r))
|
| https://www.w3.org/2000/01/rdf-schema#label |
Fisher transformation
|
| gptkbp:introducedIn |
1915
|
| gptkbp:inverseFormula |
r = (e^{2z} - 1) / (e^{2z} + 1)
|
| gptkbp:namedAfter |
gptkb:Ronald_Fisher
|
| gptkbp:purpose |
to stabilize variance of correlation coefficients
|
| gptkbp:usedFor |
hypothesis testing
confidence interval estimation correlation analysis |
| gptkbp:usedIn |
statistics
|
| gptkbp:bfsParent |
gptkb:Irving_Fisher
|
| gptkbp:bfsLayer |
5
|