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generate_failures.py
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Gregory Ashton authoredGregory Ashton authored
generate_failures.py 2.85 KiB
import pyfstat
import numpy as np
import os
import time
outdir = 'data'
label = 'run_failures'
data_label = '{}_data'.format(label)
results_file_name = '{}/MCResults_failures.txt'.format(outdir)
# Properties of the GW data
sqrtSX = 2e-23
tstart = 1000000000
Tspan = 100*86400
tend = tstart + Tspan
# Fixed properties of the signal
F0_center = 30
F1_center = 1e-10
F2 = 0
tref = .5*(tstart+tend)
VF0 = VF1 = 100
DeltaF0 = VF0 * np.sqrt(3)/(np.pi*Tspan)
DeltaF1 = VF1 * np.sqrt(45/4.)/(np.pi*Tspan**2)
DeltaAlpha = 0.02
DeltaDelta = 0.02
depths = [140]
nsteps = 50
run_setup = [((nsteps, 0), 20, False),
((nsteps, 0), 11, False),
((nsteps, 0), 6, False),
((nsteps, 0), 3, False),
((nsteps, nsteps), 1, False)]
for depth in depths:
h0 = sqrtSX / float(depth)
F0 = F0_center + np.random.uniform(-0.5, 0.5)*DeltaF0
F1 = F1_center + np.random.uniform(-0.5, 0.5)*DeltaF1
Alpha_center = np.random.uniform(0, 2*np.pi)
Delta_center = np.arccos(2*np.random.uniform(0, 1)-1)-np.pi/2
Alpha = Alpha_center + np.random.uniform(-0.5, 0.5)*DeltaAlpha
Delta = Delta_center + np.random.uniform(-0.5, 0.5)*DeltaDelta
psi = np.random.uniform(-np.pi/4, np.pi/4)
phi = np.random.uniform(0, 2*np.pi)
cosi = np.random.uniform(-1, 1)
data = pyfstat.Writer(
label=data_label, outdir=outdir, tref=tref,
tstart=tstart, F0=F0, F1=F1, F2=F2, duration=Tspan, Alpha=Alpha,
Delta=Delta, h0=h0, sqrtSX=sqrtSX, psi=psi, phi=phi, cosi=cosi,
detector='H1,L1')
data.make_data()
predicted_twoF = data.predict_fstat()
startTime = time.time()
theta_prior = {'F0': {'type': 'unif',
'lower': F0_center-DeltaF0,
'upper': F0_center+DeltaF0},
'F1': {'type': 'unif',
'lower': F1_center-DeltaF1,
'upper': F1_center+DeltaF1},
'F2': F2,
'Alpha': {'type': 'unif',
'lower': Alpha_center-DeltaAlpha,
'upper': Alpha_center+DeltaAlpha},
'Delta': {'type': 'unif',
'lower': Delta_center-DeltaDelta,
'upper': Delta_center+DeltaDelta},
}
ntemps = 2
log10temperature_min = -1
nwalkers = 100
mcmc = pyfstat.MCMCFollowUpSearch(
label=label, outdir=outdir,
sftfilepath='{}/*{}*sft'.format(outdir, data_label),
theta_prior=theta_prior,
tref=tref, minStartTime=tstart, maxStartTime=tend,
nwalkers=nwalkers, ntemps=ntemps,
log10temperature_min=log10temperature_min)
mcmc.run(run_setup=run_setup, create_plots=True, log_table=False,
gen_tex_table=False)
d, maxtwoF = mcmc.get_max_twoF()
print 'MaxtwoF = {}'.format(maxtwoF)