say I am using the CPL parametrization for the dark energy equation of state (or for that matter, any other 2-parameter parametrization of the equation of state), which is implemented in line 98 of camb/equations_ppf.f90:

Code: Select allp>

`w`_{de}=w_{lam}+wa_ppf*(1._dl-a)

_{lam}and wa_ppf through param[w]= and param[wa]= in my ini file. Is this correct so far?

However, say I want to put a hard prior on w

_{de}instead (which is given by the combination of w and wa if I understood this correctly), say e.g. I want w

_{de}>−1 because I am studying a quintessence model, how do I impose this?

Thanks a lot! Cheers,

Sunny