Interpretation of likelihood result in CosmoMC

Use of Cobaya. camb, CLASS, cosmomc, compilers, etc.
Post Reply
Su GuanJhen
Posts: 8
Joined: November 28 2015
Affiliation: National Taiwan University

Interpretation of likelihood result in CosmoMC

Post by Su GuanJhen » January 12 2016

I have used the Planck likelihood with CosmoMC, following the step of this website (http://cosmologist.info/cosmomc/readme_planck.html).

I tried

Code: Select all

mpirun -np 1 ./cosmomc test_planck.ini
and get the result as following:
Test likelihoods done, total logLike, chi-eq = 5859.141 11718.281


Does "total logLike" refer to -2*ln(Likelihood) ?
and what does "chi-eq" refer to ?

Antony Lewis
Posts: 1941
Joined: September 23 2004
Affiliation: University of Sussex
Contact:

Re: Interpretation of likelihood result in CosmoMC

Post by Antony Lewis » January 12 2016

Loglike is -ln(Likelihood) and chi-sq = -2ln(Likelihood).

Post Reply