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error in exercise 5.6.1 #9

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mvanrongen opened this issue Oct 11, 2024 · 0 comments

mvanrongen commented Oct 11, 2024

When visualising the model, it displays the original values, not the modelled values:

ggplot(augment(lme_yield), aes(x = irrigation, y = yield, colour = variety)) +
  geom_point(position = position_dodge(width = 0.5))

should be

ggplot(augment(lme_yield), aes(x = irrigation, y = .fitted, colour = variety)) +
  geom_point(position = position_dodge(width = 0.5))

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