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testlink
2004 Dec 05
4
What is the most useful way to detect nonlinearity in logistic regression?
It is easy to spot response nonlinearity in normal linear models using
plot(something.lm).
However plot(something.glm) produces artifactual peculiarities since the
diagnostic residuals are constrained by the fact that y can only take
values 0 or 1.
What do R users find most useful in checking the linearity assumption of
logistic regression (i.e. log-odds =a+bx)?
Patrick Foley
patfoley at