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2009 Feb 11
0
how to derive 5 level nested anova results table
...large
datasets (with 9448 observations). Under the helps from R-Sig-ecology
mailing list, I have gained many progresses. But I still have some
confusions. I want to ask for some helps here.
my dataset("SeedL.txt") was not attached. Data are not sorted by factors.
In this dataset, "SpecN" "PopN" "TreeN" "ConeN" "SeedN" were 5 factors (as
Explanatory), with "PopN" nested within "SpecN"; "TreeN" nested within
"PopN"; "ConeN" nested within "TreeN" and "SeedN" nested with...
2004 Dec 18
4
variables - data-structure
dear R-friends,
i`ve got a large dataset of vegetation-samples with about 500
variables(=species) in the following format:
1 spec1
1 spec23
1 spec54
1 spec63
2 spec1
2 spec2
2 spec253
2 spec300
2 spec423
3 spec20
3 spec88
3 spec121
3 spec200
3 spec450
.
.
this means: sample 1 (grassland) with the species (=spec) 1, 23, 54, 63
is it possible to get a following data-structure for further