tag:blogger.com,1999:blog-8499895524521663926.post3560182793894396076..comments2024-03-27T07:13:39.236-04:00Comments on Phylogenetic Tools for Comparative Biology: More on morphing a cladogram into phylomorphospaceLiam Revellhttp://www.blogger.com/profile/04314686830842384151noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-8499895524521663926.post-73330753479297424432018-05-02T23:12:53.108-04:002018-05-02T23:12:53.108-04:00
Hi Liam, my name is Agneesh.
This plotting on ph...<br />Hi Liam, my name is Agneesh.<br /><br />This plotting on phylomorphospace will be super useful. However, my question is about ancestral state reconstructions(ASR). <br /><br />Im using fastAnc to estimate ASR for continuous traits on a tree of 3 different families of reptiles. The distribution of the trait is not uniform in the 3 families. Two of the closer related families have values for the trait, while individuals for the third family have negligible values. My aim is to possibly find out the presence of this trait at the root of the phylogeny. I ran it once with my original dataset and detected a signal for the trait at the root. But now, I have more data for the species in the family with negligible values. After running fastAnc with the new dataset, the signal at the root vanishes. I get the feeling that this has to do with the fact that the new data is causing over sampling of species that have very low trait values, thus the signal at the root is vanishing. Any suggestions on how to account for this sample bias?<br /><br />ThanksAnonymoushttps://www.blogger.com/profile/00054537466859015624noreply@blogger.comtag:blogger.com,1999:blog-8499895524521663926.post-52895271797924802522018-05-02T02:51:39.565-04:002018-05-02T02:51:39.565-04:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/00054537466859015624noreply@blogger.com