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2010 Aug 31
1
anova and lm results differ
Dear all I have found that the two "equivalent" commands do not produce the same results. 1. (I wrote this command by hand, this is what I would do usually) >summary(aov(eduyrs ~ cntry * edf, data=ESS1)) Df Sum Sq Mean Sq F value Pr(>F) cntry 1 257 256.65 21.2251 4.243e-06 *** edf 4 11010 2752.42 227.6296 < 2.2e-16 *** cntry:edf 4 24 6.03 0.4987 0.7367 Residuals 3205 38754 1...