Generalized Linear Models
Keyword(s):
This chapter revisits a regression analysis to explore the normal least squares assumption of approximately equal variance. It also considers some of the data transformations that can be used to achieve this. A linear regression of transformed data is compared with a generalized linear-model equivalent that avoids transformation by using a link function and non-normal distributions. Generalized linear models based on maximum likelihood use a link function to model the mean (in this case a square-root link) and a variance function to model the variability (in this case the gamma distribution, where the variance increases as the square of the mean). The Box–Cox family of transformations is explained in detail.
2017 ◽
Vol 10
(2)
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pp. e1425
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2001 ◽
Vol 55
(3)
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pp. 269-280
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Keyword(s):
2020 ◽
Vol 11
◽
pp. 215013272092867
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2003 ◽
Vol 3
(4)
◽
pp. 386-411
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