| Box-Cox Normality Plot | |
| # observations x | 144 |
| maximum correlation | 0.988903262851653 |
| optimal lambda | 0.22 |
| 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 0.148 0 -0.2374 0.5335
Likelihood ratio test that transformation parameter is equal to 0
(log transformation)
LRT df pval
LR test, lambda = (0) 0.5662479 1 0.45175
Likelihood ratio test that no transformation is needed
LRT df pval
LR test, lambda = (1) 18.62702 1 1.5895e-05
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