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4ph
2011 Sep 27
1
ANOVA define as factor or not
Hi all
This is probably a simple problem but somehow I am having much trouble with
finding a solution, so I seek your help!
I have a data-set with continuous response variables. The explanatory
variably is 4xpH treatments (so 8.08, 7.94, 7.81 and 7.71) so also
continuous and not technically factorial.
However I have decided to do Anova's (as well as regression) to explore the
effect of pH.
What I don't understand is why the anova done in such a way:
summary(aov(BioMass~pH))
... gives me com...