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kmpleasure
2010 Apr 28
2
Size limitations for model.matrix?
...28
> coll.1st.model.mat <- model.matrix(coll.1st.formula, data = coll.train)
> dim(coll.1st.model.mat)
[1] 581618 169
One I saw the resulting model.matrix had fewer rows than the original
data.frame I played with the number of input variables in the model:
> ttt <- model.matrix(~kmpleasure + vehage + age + gender + marital.status
+
+ license.category + minor.conviction + driver.training.certificate +
+ admhybrid + anpol + anveh + cie + dblct + faq13c + faq20 + faq27 +
faq43 +
+ faq5a + fra2 + frb2 + frb3 + kmaff + kmannuel + kmtravai + lima +
maison +
+ nacp + nap +...