I was just perusing the help file for the step() function. The last
sentence of the DETAILS section reads:
Note: this function should not be used with logistic regression.
But, the sample code provided in the EXAMPLES section uses
glm.object <- glm(Kyphosis ~ Age + Start + Number, family = binomial,
data = kyphosis)
step(glm.object)
which looks an awful lot like using the step function with logistic
regression to me.
Isn't that ironic?
JVA
`·.,, ><(((º> `·.,, ><(((º> `·.,, ><(((º>
Jean V. Adams
Statistician
U.S. Geological Survey
Great Lakes Science Center
c/o Marquette Biological Station
1924 Industrial Parkway
Marquette, MI 49855 U.S.A.
phone: (906) 226-1212
FAX: 906-226-3632
web site: www.glsc.usgs.gov
e-mail: JVAdams@usgs.gov
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