Thank you Liam! I'm gonna check the post!
All the best,
Iara
Iara Reinaldo Coriolano
Bacharela em Ciências Biológicas pela Universidade Federal do Ceará
Mestranda pelo Programa de Pós-graduação em Ecologia - UFRGS
Laboratório de Ecologia de Populações - UFRGS - http://ferrazlab.org/
2018-07-30
Dear Iara.
In fact, it is now possible to conduct a null hypothesis test with this
method in phytools. I posted about it in my blog in 2017:
http://blog.phytools.org/2017/11/bivariate-phylogenetic-regression-with.html.
All the best, Liam
Liam J. Revell, Associate Professor of Biology
Dear Miguel & Eduardo.
This is correct, except that you should keep in mind that pbtree (like
most, but not all, such simulators) generates trees from the first
speciation event. Thus, the correct procedure must first involve drawing
a wait time from an exponential distribution, deciding if
Maybe you could use a birth-death model. You can estimate the speciation
rate and extinction rate from your original tree, and use those parameters
to run simulations of trees for 5 My with the pbtree function from
phytools. Run as many simulations as you have living tips in your original
tree,
Hello all,
I'm using the function pgls.Ives() from the package phytools to incorporate
within-species variance in both variables. I would like to know whether a
statistic to evaluate the significance of the values were incorporated
after the 2015 post asking about it.
Thanks in advance,
Iara
