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Diffstat (limited to 'fr.py')
| -rwxr-xr-x | fr.py | 224 |
1 files changed, 0 insertions, 224 deletions
@@ -1,224 +0,0 @@ -#! /usr/bin/env python -# author : S. Mandalia -# s.p.mandalia@qmul.ac.uk -# -# date : March 17, 2018 - -""" -HESE BSM flavour ratio MCMC analysis script -""" - -from __future__ import absolute_import, division - -import os -import argparse -from copy import deepcopy -from functools import partial - -import numpy as np - -from utils import fr as fr_utils -from utils import llh as llh_utils -from utils import mcmc as mcmc_utils -from utils import misc as misc_utils -from utils import plot as plot_utils -from utils.enums import MCMCSeedType, ParamTag, PriorsCateg -from utils.param import Param, ParamSet - - -def define_nuisance(): - """Define the nuisance parameters.""" - tag = ParamTag.SM_ANGLES - nuisance = [] - g_prior = PriorsCateg.GAUSSIAN - lg_prior = PriorsCateg.LIMITEDGAUSS - e = 1e-9 - nuisance.extend([ - Param(name='s_12_2', value=0.307, seed=[0.26, 0.35], ranges=[0., 1.], std=0.013, tex=r's_{12}^2', tag=tag), - Param(name='c_13_4', value=(1-(0.02206))**2, seed=[0.950, 0.961], ranges=[0., 1.], std=0.00147, tex=r'c_{13}^4', tag=tag), - Param(name='s_23_2', value=0.538, seed=[0.31, 0.75], ranges=[0., 1.], std=0.069, tex=r's_{23}^2', tag=tag), - Param(name='dcp', value=4.08404, seed=[0+e, 2*np.pi-e], ranges=[0., 2*np.pi], std=2.0, tex=r'\delta_{CP}', tag=tag), - ]) - return ParamSet(nuisance) - - -def get_paramsets(args, nuisance_paramset): - """Make the paramsets for generating the Asmimov MC sample and also running - the MCMC. - """ - asimov_paramset = [] - hypo_paramset = [] - - hypo_paramset.extend( - [x for x in nuisance_paramset.from_tag(ParamTag.SM_ANGLES)] - ) - - for parm in hypo_paramset: - parm.value = args.__getattribute__(parm.name) - - hypo_paramset = ParamSet(hypo_paramset) - - tag = ParamTag.BESTFIT - flavour_angles = fr_utils.fr_to_angles(args.injected_ratio) - - asimov_paramset.extend([ - Param(name='astroFlavorAngle1', value=flavour_angles[0], ranges=[ 0., 1.], std=0.2, tag=tag), - Param(name='astroFlavorAngle2', value=flavour_angles[1], ranges=[-1., 1.], std=0.2, tag=tag), - ]) - asimov_paramset = ParamSet(asimov_paramset) - - return asimov_paramset, hypo_paramset - - -def nuisance_argparse(parser): - nuisance = define_nuisance() - for parm in nuisance: - parser.add_argument( - '--'+parm.name, type=float, default=parm.value, - help=parm.name+' to inject' - ) - - -def process_args(args): - """Process the input args.""" - args.injected_ratio = fr_utils.normalise_fr(args.injected_ratio) - - -def parse_args(args=None): - """Parse command line arguments""" - parser = argparse.ArgumentParser( - description="BSM flavour ratio analysis", - formatter_class=misc_utils.SortingHelpFormatter, - ) - parser.add_argument( - '--injected-ratio', type=float, nargs=3, default=[1, 2, 0], - help='Set the central value for the injected flavour ratio at source' - ) - parser.add_argument( - '--seed', type=misc_utils.seed_parse, default='26', - help='Set the random seed value' - ) - parser.add_argument( - '--threads', type=misc_utils.thread_type, default='1', - help='Set the number of threads to use (int or "max")' - ) - parser.add_argument( - '--datadir', type=str, default='./untitled', - help='Path to store chains' - ) - mcmc_utils.mcmc_argparse(parser) - nuisance_argparse(parser) - if args is None: return parser.parse_args() - else: return parser.parse_args(args.split()) - - -def gen_identifier(args): - f = '_INJ_{0}'.format(misc_utils.solve_ratio(args.injected_ratio)) - return f - - -def gen_figtext(args, asimov_paramset): - f = '' - f += 'Injected ratio = {0}'.format( - misc_utils.solve_ratio(args.injected_ratio) - ) - for param in asimov_paramset: - f += '\nInjected {0:20s} = {1:.3f}'.format( - param.name, param.nominal_value - ) - return f - - -def triangle_llh(theta, args, hypo_paramset): - """Log likelihood function for a given theta.""" - if len(theta) != len(hypo_paramset): - raise AssertionError( - 'Dimensions of scan is not the same as the input ' - 'params\ntheta={0}\nparamset]{1}'.format(theta, hypo_paramset) - ) - for idx, param in enumerate(hypo_paramset): - param.value = theta[idx] - - return 1. # Flat LLH - - -def ln_prob(theta, args, hypo_paramset): - dc_hypo_paramset = deepcopy(hypo_paramset) - lp = llh_utils.lnprior(theta, paramset=dc_hypo_paramset) - if not np.isfinite(lp): - return -np.inf - return lp + triangle_llh( - theta, - args = args, - hypo_paramset = dc_hypo_paramset, - ) - - -def main(): - args = parse_args() - process_args(args) - misc_utils.print_args(args) - - if args.seed is not None: - np.random.seed(args.seed) - - asimov_paramset, hypo_paramset = get_paramsets(args, define_nuisance()) - - prefix = '' - outfile = args.datadir + '/fr' + prefix + gen_identifier(args) - print '== {0:<25} = {1}'.format('outfile', outfile) - - print 'asimov_paramset', asimov_paramset - print 'hypo_paramset', hypo_paramset - - if args.run_mcmc: - ln_prob_eval = partial( - ln_prob, - hypo_paramset = hypo_paramset, - args = args, - ) - - if args.mcmc_seed_type == MCMCSeedType.UNIFORM: - p0 = mcmc_utils.flat_seed( - hypo_paramset, nwalkers=args.nwalkers - ) - elif args.mcmc_seed_type == MCMCSeedType.GAUSSIAN: - p0 = mcmc_utils.gaussian_seed( - hypo_paramset, nwalkers=args.nwalkers - ) - - samples = mcmc_utils.mcmc( - p0 = p0, - ln_prob = ln_prob_eval, - ndim = len(hypo_paramset), - nwalkers = args.nwalkers, - burnin = args.burnin, - nsteps = args.nsteps, - args = args, - threads = args.threads - ) - - mmxs = map(fr_utils.angles_to_u, samples) - frs = np.array( - [fr_utils.u_to_fr(args.injected_ratio, x) for x in mmxs] - ) - mcmc_utils.save_chains(frs, outfile) - - of = outfile[:5]+outfile[5:].replace('data', 'plots')+'_posterior' - plot_utils.chainer_plot( - infile = outfile+'.npy', - outfile = of, - outformat = ['png'], - args = args, - llh_paramset = hypo_paramset, - fig_text = gen_figtext(args, hypo_paramset) - ) - - print "DONE!" - - -main.__doc__ = __doc__ - - -if __name__ == '__main__': - main() |