Despite having used R on a daily basis for the past two years, I'm
encountering some difficulty performing an ANOVA on my data. What I'm trying
to do is the following:

 

Given data such as:

 

Day 1    Day 4    Day 8

2          7          2

3          2          8          

3          4          7

6          6          8

1          3          4

 

I want to use ANOVA to determine if there is a significant change over the
three days. In other stats packages I have used, I can just select this data
and run the ANOVA function and get the F and p values. However in R, the
anova function seems to only work with a fitted model, eg. Linear
regression. This function seems to assume there is a relationship such as
day1~ day 4 + day 8, but in my case there isn't - I just want to perform an
ANOVA without regression. If anyone could point me in the right direction
I'd greatly appreciate it,

 

Thanks


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