Hi,
I'm trying to figure out how to perform a fit to some BAO measurements alone (so, measurements of DM/rdrag, DH/rdrag and similar). How do I set up the parameters correctly for this in Cobaya (calling CAMB for theory)? Something like the background parameterization in CosmoMC. For example, in LCDM I want to sample Omega_m and the product rdrag*h, instead of Omega_c*h^2, Omega_b*h^2, etc.. I'm sure there's a simple way to do this, although I tried searching both the Cobaya documentation and this forum and couldn't quickly find the answer.
Thanks for any help.
I'm trying to figure out how to perform a fit to some BAO measurements alone (so, measurements of DM/rdrag, DH/rdrag and similar). How do I set up the parameters correctly for this in Cobaya (calling CAMB for theory)? Something like the background parameterization in CosmoMC. For example, in LCDM I want to sample Omega_m and the product rdrag*h, instead of Omega_c*h^2, Omega_b*h^2, etc.. I'm sure there's a simple way to do this, although I tried searching both the Cobaya documentation and this forum and couldn't quickly find the answer.
Thanks for any help.
Statistics: Posted by Graeme Addison — April 06 2024