On Oct 9, 2011, at 11:10 AM, shardman wrote:
Hi,
I'm trying to analyse some data I have imported into R from a .csv
file but
when I carry out the aov command the results show only one degree of
freedom
when there should be 14. Does anyone know why? I'd really appreciate
some
help, the data is pasted below.
To me this appears likely to be homework. If so then please read your
college's rules regarding academic honesty. In any case, please read
the Posting Guide.
/The imported table looks ike this this:/
Order Transect Sample Abundance
1 Coleoptera 1 1 13
2 Coleoptera 1 2 12
3 Coleoptera 1 3 11
4 Coleoptera 1 4 13
5 Coleoptera 1 5 6
6 Coleoptera 2 1 18
7 Coleoptera 2 2 18
8 Coleoptera 2 3 16
9 Coleoptera 2 4 21
10 Coleoptera 2 5 11
11 Coleoptera 3 1 19
12 Coleoptera 3 2 16
13 Coleoptera 3 3 9
14 Coleoptera 3 4 32
15 Coleoptera 3 5 29
/The command I am using is this:/
anova2<-aov(Abundance~Transect,data=beetle)
/The results come out like this:/
Df Sum Sq Mean Sq F value Pr(>F)
Transect 1 250.00 250.000 7.2394 0.01852 *
Residuals 13 448.93 34.533
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Cheers,
Sam
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