Displaying 3 results from an estimated 3 matches for "macroevolut".
2002 Sep 05
0
ape 0.1 is released
...CRAN.
>From the 'Description' file of version 0.1:
Ape provides functions for reading, and plotting
phylogenetic trees in parenthetic format (standard Newick
format), analyses of comparative data in a phylogenetic
framework, analyses of diversification and macroevolution,
computing distances from allelic and nucleotide data,
reading nucleotide sequences from GenBank via internet, and
several tools such as Mantel's test, computation of minimum
spanning tree, or the population parameter theta based on
various approaches.
Bug...
2010 Mar 19
1
Howto get unnormalized eigenvectors?
...)$vectors[,1]
y<-eigen(cov(population2))$vectors[,1]
angle (in degree):
((acos((x%*%y)/(sqrt(x%*%y)*sqrt(y%*%y))))*180)/pi
Thus by using normalized vectors, the divisor becomes meaningless being 1.
Does anybody have an idea to get raw eigenvectors?
Thanks a lot
Kay Lucek
Aquatic Ecology & Macroevolution
University of Bern
Baltzerstr. 6
3012 Bern
Switzerland
2002 Jan 16
2
list indexing
...]))
> store
[1] 3 4 2 5
I know it's only two lines of code. I guess I'm wondering whether
there is something that does what I'd expect from length(x[[1:4]]) if
[[i]] allowed multiple indices.
Thanks,
David Orme.
--
---------------------------------
David Orme
Ph.D. Student - Macroevolution and diversity.
Department of Biology,
Imperial College,
Silwood Park,
Ascot,
Berkshire.
UK.
SL5 7PY
Phone: (020) 759 42446 (wk.)
(01344) 891539 (hm.)
E-mail: d.orme at ic.ac.uk
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