GLM output problem
Embarrassing but that's true. I wrote 'binamial' instead of 'binomial'. I tried now with the correct spelling and everything is ok, in fact.
summary(GLM)
Call:
glm(formula = model, family = binomial(link = logit))
Coefficients:
Estimate Std. Error z value Pr(>|z|)
(Intercept) -18.5750 10.7646 -1.726 0.0844 .
x 5.0403 2.7757 1.816 0.0694 .
I(x^2) -0.2845 0.1558 -1.826 0.0679 .
Thank you all.
Anderson Eduardo
2016-09-01 5:14 GMT-03:00 peter dalgaard <pdalgd at gmail.com>:
And use the parameters returned by GLM to contruct an equation for the regression model: model.eq = -0.446078 + 0.267673*x - 0.014577*I(x^2)
## Not what I got with your data. I got: Coefficients: (Intercept) x I(x^2) -18.5750 5.0403 -0.2845 I suspect you had some other x,y variables lying around when you defined your model.
More likely, the family= specification got lost and gaussian family implied:
glm(model)
Call: glm(formula = model) Coefficients: (Intercept) x I(x^2) -0.44608 0.26767 -0.01458 -- Peter Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Office: A 4.23 Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com
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