Running Cobaya

Running Cobaya#

The YAML file below configures Cobaya to evaluate this likelihood. You can run this with:

cobaya-run cobaya_evaluate.yaml
# File cobaya_evaluate.yaml
theory:
  camb:
    stop_at_error: true
    extra_args:
      num_massive_neutrinos: 1
      halofit_version: mead
  fcc_ccl:
    external: !!python/name:firecrown.connector.cobaya.ccl.CCLConnector ''
    input_style: CAMB
likelihood:
  des_y1_3x2pt:
    external: !!python/name:firecrown.connector.cobaya.likelihood.LikelihoodConnector ''
    firecrownIni: des_y1_3x2pt.py
params:
  As:
    prior:
      min: 5.0e-10
      max: 8.0e-09
    ref: 2.0e-09
    proposal: 1.0e-10
  ombh2: 0.022558514
  omch2:
    prior:
      min: 0.05
      max: 0.2
    ref: 0.118374058
    proposal: 0.01
  H0: 68.2
  tau: 0.0561
  mnu: 0.06
  nnu: 3.046
  ns: 0.971
  YHe: 0.2454
  w: -1.0
  wa: 0.0
  
#   Likelihood params
#   - IA model
  ia_bias:
     ref: 0.5
     prior:
        min: -5.0
        max: +5.0
  alphaz:
     ref: 0.0
     prior:
        min: -5.0
        max: +5.0

#   - these parameters are fixed
  alphag: -1
  z_piv: 0.62

#   - linear bias for lenses
  lens0_bias: 
     ref: 1.4
     prior:
        min: 0.8
        max: 3.0
  lens1_bias: 
     ref: 1.6
     prior:
        min: 0.8
        max: 3.0
  lens2_bias: 
     ref: 1.6
     prior:
        min: 0.8
        max: 3.0
  lens3_bias: 
     ref: 1.9
     prior:
        min: 0.8
        max: 3.0
  lens4_bias: 
     ref: 2.0
     prior:
        min: 0.8
        max: 3.0

#   - photoz shifts for the lensing sources
  src0_delta_z: 
     ref: -0.001
     prior:
        dist: norm
        loc: -0.001
        scale: 0.016
  src1_delta_z: 
     ref: -0.019
     prior:
        dist: norm
        loc: -0.019
        scale: 0.013
  src2_delta_z: 
     ref: +0.009
     prior:
        dist: norm
        loc: 0.009
        scale: 0.011
  src3_delta_z: 
     ref: -0.018
     prior:
        dist: norm
        loc: -0.018
        scale: 0.022

#   - photoz shifts for the lenses
  lens0_delta_z:
     ref: 0.001
     prior:
        dist: norm
        loc: 0.001
        scale: 0.008
  lens1_delta_z: 
     ref: 0.002
     prior:
        dist: norm
        loc: 0.002
        scale: 0.007
  lens2_delta_z: 
     ref: 0.001
     prior:
        dist: norm
        loc: 0.001
        scale: 0.007
  lens3_delta_z: 
     ref: 0.003
     prior:
        dist: norm
        loc: 0.003
        scale: 0.01
  lens4_delta_z: 
     ref: 0.0
     prior:
        dist: norm
        loc: 0.0
        scale: 0.01

#   - shear errors
  src0_mult_bias: 
     ref: 0.0
     prior:
        dist: norm
        loc: 0.012
        scale: 0.023
  src1_mult_bias: 
     ref: 0.0
     prior:
        dist: norm
        loc: 0.012
        scale: 0.023
  src2_mult_bias: 
     ref: 0.0
     prior:
        dist: norm
        loc: 0.012
        scale: 0.023
  src3_mult_bias: 
     ref: 0.0
     prior:
        dist: norm
        loc: 0.012
        scale: 0.023

sampler:
  evaluate: null
stop_at_error: true
output: cobaya_evaluate_output
packages_path: null
test: false
debug: false