Dear all,
Following up this conversation; Using OUwie, i get reasonable values for
theta under several models for all my traits, but one. In this case, this
is a trait which can only take positive values and i get negative theta
values for all the different models, including BM and OU1. the
Dear list users,
I'm analyzing a data set consisting of several floral traits in dioecious
*Leucadendron*. I would like to use pGEE to account for phylogentic
relatedness among species. I'm particularly interested in interactions
between plant sex and pollination system (wind or insect). However,
Thank you both! Liam's code worked for my case.
Best,
Jingchun
On Mon, Nov 11, 2013 at 10:21 PM, Emmanuel Paradis
emmanuel.para...@ird.frwrote:
Hi,
Have a look at the function makeNodeLabel with the option method =
md5sum: it will create a label to each node depending on the tips
Often if you have a trait constrained to be positive, it's appropriate to
log-transform it, which has the happy effect of making the theta for the
trait when converted back to a non-log scale constrained to be positive (as
well as probably being more appropriate for how your trait evolves).
You
