Displaying 3 results from an estimated 3 matches for "foresttype".
2006 Mar 24
0
Trouble phrasing an R command that will run the model i need (ANOVA, nested)
...doing so
have so far not worked.
I am wondering if anybody can help me to figure out what i've been doing
wrong, and what i need to do in order to use R correctly?
The model is an ANOVA with some crossed factors, interactions, and one
nested factor. I have listed them here:
(Factors "foresttype" through to "experiment" are all at the same level;
there is no nesting there, but the last factor listed is nested).
foresttype
region
foresttype:region
crosstype
foresttype:crosstype
experiment
linelabel (nested within every cell)
...and these are the appropriate F-test error te...
2006 Mar 25
1
Trouble phrasing an R command that will run the model i need (ANOVA, nes
...but it's the same set-up for them: each individual cross
only gives one value for a response variable, and has one state with respect
to each factor.
Just in the interests of clarifying things as much as possible: one of my
datasets looks like this(apologies if the formatting gets weird):
foresttype region crosstype experiment linelabel yproductivity
l g wx 1 al1
63
l g wx 1 al2
26
... and so on.
Each horizontal line refers to a single observation. The first horizont...
2007 Jul 06
5
Clustering nested data
Hi all,
I am interested in performing a cluster analysis on ecological data from
forests in Pennsylvania. I would like to develop definitions for forest
types (red maple forests, upland oak forests, etc.(AH AR in attached table))
based on measured attributes in each forest type. To do this, I would like
to 'draw clusters' around forest types based on information from various
tree