CosmoCoffee

Hello,

I am running Cobaya but would like to use an initial covmat produced by a Montepython run. When I try to just include it as the covmat, the run fails and I get the error:

is not a positive-definite, symmetric square matrix

. I know the covmat is positive definite, symmetric, and square (it comes from a very well converged MP run).

Any insights on why this error is occurring and how it may be addressed would be appreciated!

Best,
Tristan

Hi Tristan,

Can you post the matrix, please?

Hello Tristan and Jesus!
I'm having the same problem. Did anyone manage to identify the problem and its solution?
Thanks!

My guess would be differences between parameter names. But please provide a full test case if it seems it is consistent and should work.

Yes that was the issue. Thanks a lot!