Joined: 24 Jan 2013
|Posted: August 05 2017
My old rig has fallen, so I just finished basically formatting everything and reinstalling CosmoMC (and all deps).
I have now run 3 separate runs with the different datasets.
Just as a reference:
#Bicep-Keck-Planck, varying cosmological parameters
#Planck 2015, default just include native likelihoods (others require clik)
#e.g. to vary r in addition to standard 6:
#(for r>0 also need compute_tensors=T)
compute_tensors = T
param[r] = 0.06 0.0 0.5 0.04 0.04
param[logA] = 3.1 1.5 4.5 0.04 0.04
param[ns] = 0.96 0.9 1.05 0.04 0.04
param[nrun]=-0.09 -0.5 0.5 0.04 0.04
I used different data sets - including BAO, Wigglez etc.
The results for nrun are always slightly positive, where in my previous experience, when nrun is used (and nrun,run is set to 0 ) , one usually gets a slightly negative value.
This is also the case with the most recent Planck collaboration analysis.
Has the convention for CosmoMC changed between the last stable version and the current master branch?
If not, any advise on what is happening?