| Box-Cox Normality Plot | |
| # observations x | 1677 |
| maximum correlation | 0.988512059760626 |
| optimal lambda | 8 |
| transformation formula | for all lambda <> 0 : T(Y) = (Y^lambda - 1) / lambda |
| Maximum Likelihood Estimation of Lambda |
> summary(mypT)
bcPower Transformation to Normality
Est Power Rounded Pwr Wald Lwr Bnd Wald Upr Bnd
x 7.0691 7.07 6.1439 7.9943
Likelihood ratio test that transformation parameter is equal to 0
(log transformation)
LRT df pval
LR test, lambda = (0) 236.7434 1 < 2.22e-16
Likelihood ratio test that no transformation is needed
LRT df pval
LR test, lambda = (1) 173.4809 1 < 2.22e-16
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