There is also an implementation of this method in two functions in ape, see:
?pic.ortho
?varCompPhylip
There are examples with simulated data in both help pages. The second
function requires PHYLIP (similarly to Rphylip) .
Best,
Emmanuel
Le 04/08/2017 à 14:36, Joe Felsenstein a écrit :
The
There is also my C program Contrast, which implements a method from a
2008 paper I wrote:
Felsenstein, J. 2008. Comparative methods with sampling error and
within-species variation: contrasts revisited and revised. American
Naturalist 171: 713-725.
This estimates the within-species covariances
