Closed 32537 closed 11 months ago
Hi there,
This issue was addressed on the PAML Google Group in 2019 (see full discussion on the Google group). Ziheng gave the following answer:
this is a warning because some branch lengths are 0. obviously if you have some identical sequences, some branch lengths will be 0. i think you can ignore the warning.
Cheers!
The err is Warning: Hessian matrix may be unreliable for zero branch lengths and then is killed. I do not how to do it. Thanks for your help!