[R] Learning ANOVA

JesperHybel jesperhybel at hotmail.com
Fri Aug 13 20:09:48 CEST 2010


If you're trying to follow the youtube video you have a typing mistake here:

InsectSprays.aov <-(test01$count ~ test01$spray)

I think this should be:

InsectSprays.aov <-aov(test01$count ~ test01$spray)


youre missing the functioncall "aov" on the right hand side of the
assignment operator '<-'.

the results of the application of function aov() is stored in
InsectSprays.aov and is accessed through

summary(InsectSprays.aov)

since you missed the functioncall you cannot apply TukeyHSD() to
InsectSprays.aov

I think
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