Box-Cox Normality Plot
# observations x291
maximum correlation0.916665444070694
optimal lambda1.38
transformation formulafor all lambda <> 0 : T(Y) = (Y^lambda - 1) / lambda


Obs.OriginalTransformed
10.5-0.446218264259418
20.5-0.446218264259418
30.5-0.446218264259418
40.5-0.446218264259418
50.5-0.446218264259418
60.5-0.446218264259418
70.5-0.446218264259418
82.51.84148919688188
92.51.84148919688188
102.51.84148919688188
112.51.84148919688188
122.51.84148919688188
132.51.84148919688188
142.51.84148919688188
152.51.84148919688188
163.53.35794336336114
173.53.35794336336114
183.53.35794336336114
193.53.35794336336114
203.53.35794336336114
213.53.35794336336114
223.53.35794336336114
233.53.35794336336114
243.53.35794336336114
253.53.35794336336114
264.55.05039149406579
274.55.05039149406579
284.55.05039149406579
294.55.05039149406579
304.55.05039149406579
314.55.05039149406579
324.55.05039149406579
334.55.05039149406579
344.55.05039149406579
354.55.05039149406579
364.55.05039149406579
374.55.05039149406579
385.56.89301951703742
395.56.89301951703742
405.56.89301951703742
415.56.89301951703742
425.56.89301951703742
435.56.89301951703742
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465.56.89301951703742
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635.56.89301951703742
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705.56.89301951703742
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725.56.89301951703742
736.58.86807298987499
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756.58.86807298987499
766.58.86807298987499
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806.58.86807298987499
816.58.86807298987499
826.58.86807298987499
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956.58.86807298987499
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997.510.9624272546599
1007.510.9624272546599
1017.510.9624272546599
1027.510.9624272546599
1037.510.9624272546599
1047.510.9624272546599
1057.510.9624272546599
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1087.510.9624272546599
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1177.510.9624272546599
1187.510.9624272546599
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1207.510.9624272546599
1217.510.9624272546599
1227.510.9624272546599
1237.510.9624272546599
1248.513.1658991734021
1258.513.1658991734021
1268.513.1658991734021
1278.513.1658991734021
1288.513.1658991734021
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1348.513.1658991734021
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1368.513.1658991734021
1378.513.1658991734021
1388.513.1658991734021
1398.513.1658991734021
1408.513.1658991734021
1418.513.1658991734021
1428.513.1658991734021
1438.513.1658991734021
1448.513.1658991734021
1458.513.1658991734021
1469.515.4703077463909
1479.515.4703077463909
1489.515.4703077463909
1499.515.4703077463909
1509.515.4703077463909
1519.515.4703077463909
1529.515.4703077463909
1539.515.4703077463909
1549.515.4703077463909
1559.515.4703077463909
1569.515.4703077463909
1579.515.4703077463909
1589.515.4703077463909
1599.515.4703077463909
1609.515.4703077463909
16110.517.8689050549175
16210.517.8689050549175
16310.517.8689050549175
16410.517.8689050549175
16510.517.8689050549175
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22010.517.8689050549175
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29010.517.8689050549175
29112.522.9267557005424


Maximum Likelihood Estimation of Lambda
> summary(mypT)
bcPower Transformation to Normality 
  Est Power Rounded Pwr Wald Lwr Bnd Wald Upr Bnd
x    1.6796        1.68       1.3756       1.9836
Likelihood ratio test that transformation parameter is equal to 0
 (log transformation)
                           LRT df       pval
LR test, lambda = (0) 264.7451  1 < 2.22e-16
Likelihood ratio test that no transformation is needed
                           LRT df       pval
LR test, lambda = (1) 24.92264  1 5.9678e-07