Merge pull request #51 from joezuntz/planck-lite-example

Add planck lite example

examples/planck_lite.ini

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+[runtime]
+sampler = test
+root = ${PWD}
+
+[test]
+save_dir=output/planck
+fatal_errors=T
+
+
+[pipeline]
+; these names refer to sections later in the file:
+modules = consistency camb planck 
+values = examples/planck_lite_values.ini
+quiet=F
+debug=T
+timing=T
+
+
+[planck]
+file = likelihood/planck_py/planck_py_interface.py 
+use_low_ell_bins = T
+spectra = TTTEEE
+year = 2018
+
+
+; The consistency module translates between our chosen parameterization
+; and any other that modules in the pipeline may want (e.g. camb)
+[consistency]
+file = ./utility/consistency/consistency_interface.py
+
+
+[camb]
+file = boltzmann/camb/camb_interface.py
+mode = cmb
+lmax = 2800          ;max ell to use for cmb calculation
+feedback=2         ;amount of output to print
+AccuracyBoost=1.1 ;CAMB accuracy boost parameter
+do_tensors = True   ;include tensor modes
+do_lensing = True    ;lensing is required w/ Planck data
+NonLinear = lens
+accurate_massive_neutrino_transfers = F
+halofit_version = takahashi

examples/planck_lite_values.ini

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+[cosmological_parameters]
+h0 = 0.6726       ;H0 (km/s/Mpc)/100.0km/s/Mpc 
+omega_m = 0.3141  ;density fraction for matter today
+omega_b = 0.04    ;density fraction for baryons today
+omega_k = 0.0     ;spatial curvature
+
+;neutrinos
+mnu = 0.06
+nnu = 3.046
+num_massive_neutrinos = 1
+
+
+;helium 
+yhe = 0.245341  ;helium mass fraction
+
+;reionization
+tau = 0.08      ;reionization optical depth
+
+;inflation Parameters
+n_s = 0.96      ;scalar spectral index
+A_s = 2.1e-9    ;scalar spectrum primordial amplitude
+k_s = 0.05      ;Power spectrum pivot scale 
+n_run = 0.0     ;running of scalar spectrum 
+r_t = 0.0       ;tensor to scalar ratio
+n_t = 0.0       ;tensor spectral index 
+
+;dark energy equation of state
+w = -1.0   ;equation of state of dark energy
+wa = 0.0   ;equation of state of dark energy (redshift dependency)
+