Bill
I think you are correct, there's something funny in add1, but is it just
degrees of freedom? Example below..
On Tue, May 14, 2013 at 2:23 PM, William Dunlap wdun...@tibco.com wrote:
Shouldn't the F statistic (and p value) for the x2 term in the following
calls
to anova() and add1() be
Shouldn't the F statistic (and p value) for the x2 term in the following calls
to anova() and add1() be the same? I think anova() gets it right and add1()
does not.
d - data.frame(y=1:10, x1=log(1:10), x2=replace(1/(1:10), 2:3, NA))
anova(lm(y ~ x1 + x2, data=d))
Analysis of Variance Table
