Chapitre 12. R´ egression lin´ eaire simple et multiple
529
> res <- residuals(modelefinal)
> par(mfrow=c(2,3))
> plot(res∼SMOKE);plot(res∼AGE);plot(res∼LWT)
> plot(res∼RACE);plot(res∼UI);plot(res∼HT)
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0.0 0.4 0.8
−1500
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1000
SMOKE
res
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15 25 35 45
−1500
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AGE
res
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LWT
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RACE
res
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0.0 0.4 0.8
−1500
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UI
res
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0.0 0.4 0.8
−1500
0
1000
HT
res
Figure 12.11 – R´ esidus en fonction des variables explicatives.