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2011 Sep 13
1
stupid lm() question
...crease~.,data=OrchardSprays)
Rgames> model
Call:
lm(formula = decrease ~ ., data = OrchardSprays)
Coefficients:
(Intercept) rowpos colpos treatmentB treatmentC
22.705 -2.784 -1.234 3.000 20.625
treatmentD treatmentE treatmentF treatmentG treatmentH
30.375 58.500 64.375 63.875 85.625
Rgames> levels(OrchardSprays$treatment) #just double-checking...
[1] "A" "B" "C" "D" "E" "F" "G" "H"
So: why isn't there a value for the level...