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Commit 17ea6923 authored by Gregory Ashton's avatar Gregory Ashton
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Update to using min/max StartTimes rather than tstart tend 

tstart tend refers to signal properties, so is only used when relevant.
Otherwise use the LAL parameter min/maxStartTime
parent a647dc36
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pyfstat.py
View file @ 17ea6923
......@@ -545,7 +545,7 @@ class SemiCoherentSearch(BaseSearchClass, ComputeFstat):
----------
label, outdir: str
A label and directory to read/write data from/to.
tref, tstart, tend: int
tref, minStartTime, maxStartTime: int
GPS seconds of the reference time, and start and end of the data.
nsegs: int
The (fixed) number of segments
......@@ -647,16 +647,16 @@ class SemiCoherentGlitchSearch(BaseSearchClass, ComputeFstat):
"""
@initializer
def __init__(self, label, outdir, tref, tstart, tend, nglitch=0,
sftfilepath=None, theta0_idx=0, BSGL=False, minStartTime=None,
maxStartTime=None, minCoverFreq=None, maxCoverFreq=None,
def __init__(self, label, outdir, tref, minStartTime, maxStartTime,
nglitch=0, sftfilepath=None, theta0_idx=0, BSGL=False,
minCoverFreq=None, maxCoverFreq=None,
detector=None, earth_ephem=None, sun_ephem=None):
"""
Parameters
----------
label, outdir: str
A label and directory to read/write data from/to.
tref, tstart, tend: int
tref, minStartTime, maxStartTime: int
GPS seconds of the reference time, and start and end of the data.
nglitch: int
The (fixed) number of glitches; this can zero, but occasionally
......@@ -684,7 +684,8 @@ class SemiCoherentGlitchSearch(BaseSearchClass, ComputeFstat):
""" Returns the semi-coherent glitch summed twoF """
args = list(args)
tboundaries = [self.tstart] + args[-self.nglitch:] + [self.tend]
tboundaries = ([self.minStartTime] + args[-self.nglitch:]
+ [self.maxStartTime])
delta_F0s = args[-3*self.nglitch:-2*self.nglitch]
delta_F1s = args[-2*self.nglitch:-self.nglitch]
delta_F2 = np.zeros(len(delta_F0s))
......@@ -714,7 +715,7 @@ class SemiCoherentGlitchSearch(BaseSearchClass, ComputeFstat):
delta_F1, tglitch):
""" Returns the semi-coherent glitch summed twoF for nglitch=1
Note: used for testing
Note: OBSOLETE, used only for testing
"""
theta = [F0, F1, F2]
......@@ -727,14 +728,14 @@ class SemiCoherentGlitchSearch(BaseSearchClass, ComputeFstat):
theta_post_glitch_at_glitch, tref - tglitch)
twoFsegA = self.run_computefstatistic_single_point(
self.tstart, tglitch, theta[0], theta[1], theta[2], Alpha,
self.minStartTime, tglitch, theta[0], theta[1], theta[2], Alpha,
Delta)
if tglitch == self.tend:
if tglitch == self.maxStartTime:
return twoFsegA
twoFsegB = self.run_computefstatistic_single_point(
tglitch, self.tend, theta_post_glitch[0],
tglitch, self.maxStartTime, theta_post_glitch[0],
theta_post_glitch[1], theta_post_glitch[2], Alpha,
Delta)
......@@ -745,8 +746,9 @@ class MCMCSearch(BaseSearchClass):
""" MCMC search using ComputeFstat"""
@initializer
def __init__(self, label, outdir, sftfilepath, theta_prior, tref,
tstart, tend, nsteps=[100, 100, 100], nwalkers=100, ntemps=1,
log10temperature_min=-5, theta_initial=None, scatter_val=1e-10,
minStartTime, maxStartTime, nsteps=[100, 100, 100],
nwalkers=100, ntemps=1, log10temperature_min=-5,
theta_initial=None, scatter_val=1e-10,
binary=False, BSGL=False, minCoverFreq=None,
maxCoverFreq=None, detector=None, earth_ephem=None,
sun_ephem=None, injectSources=None):
......@@ -765,7 +767,7 @@ class MCMCSearch(BaseSearchClass):
Either a dictionary of distribution about which to distribute the
initial walkers about, an array (from which the walkers will be
scattered by scatter_val, or None in which case the prior is used.
tref, tstart, tend: int
tref, minStartTime, maxStartTime: int
GPS seconds of the reference time, start time and end time
nsteps: list (m,)
List specifying the number of steps to take, the last two entries
......@@ -793,9 +795,6 @@ class MCMCSearch(BaseSearchClass):
"""
self.minStartTime = tstart
self.maxStartTime = tend
if os.path.isdir(outdir) is False:
os.mkdir(outdir)
self.add_log_file()
......@@ -1034,8 +1033,9 @@ class MCMCSearch(BaseSearchClass):
for j, k in enumerate(self.theta_keys):
if k == 'tglitch':
s = samples_plt[:, j]
samples_plt[:, j] = (s - self.tstart)/(
self.tend - self.tstart)
samples_plt[:, j] = (
s - self.minStartTime)/(
self.maxStartTime - self.minStartTime)
theta_symbols_plt[j] = r'$R_{\textrm{glitch}}$'
if type(nstds) is int and 'range' not in kwargs:
......@@ -1154,14 +1154,16 @@ class MCMCSearch(BaseSearchClass):
if self.binary is False:
self.search.plot_twoF_cumulative(
self.label, self.outdir, F0=d['F0'], F1=d['F1'], F2=d['F2'],
Alpha=d['Alpha'], Delta=d['Delta'], tstart=self.minStartTime,
tend=self.maxStartTime, **kwargs)
Alpha=d['Alpha'], Delta=d['Delta'],
minStartTime=self.minStartTime, maxStartTime=self.maxStartTime,
**kwargs)
else:
self.search.plot_twoF_cumulative(
self.label, self.outdir, F0=d['F0'], F1=d['F1'], F2=d['F2'],
Alpha=d['Alpha'], Delta=d['Delta'], asini=d['asini'],
period=d['period'], ecc=d['ecc'], argp=d['argp'], tp=d['argp'],
tstart=self.tstart, tend=self.tend, **kwargs)
minStartTime=self.minStartTime, maxStartTime=self.maxStartTime,
**kwargs)
def generic_lnprior(self, **kwargs):
""" Return a lambda function of the pdf
......@@ -1622,7 +1624,7 @@ class MCMCSearch(BaseSearchClass):
tglitches = [d['tglitch']]
else:
tglitches = [d['tglitch_{}'.format(i)] for i in range(self.nglitch)]
tboundaries = [self.tstart] + tglitches + [self.tend]
tboundaries = [self.minStartTime] + tglitches + [self.maxStartTime]
deltaTs = np.diff(tboundaries)
ntrials = [time_trials + delta_F0 * dT for dT in deltaTs]
p_val = self.p_val_twoFhat(max_twoF, ntrials)
......@@ -1682,12 +1684,11 @@ class MCMCGlitchSearch(MCMCSearch):
""" MCMC search using the SemiCoherentGlitchSearch """
@initializer
def __init__(self, label, outdir, sftfilepath, theta_prior, tref,
tstart, tend, nglitch=1, nsteps=[100, 100, 100], nwalkers=100,
ntemps=1, log10temperature_min=-5, theta_initial=None,
scatter_val=1e-10, dtglitchmin=1*86400, theta0_idx=0,
detector=None, BSGL=False,
minCoverFreq=None, maxCoverFreq=None, earth_ephem=None,
sun_ephem=None):
minStartTime, maxStartTime, nglitch=1, nsteps=[100, 100, 100],
nwalkers=100, ntemps=1, log10temperature_min=-5,
theta_initial=None, scatter_val=1e-10, dtglitchmin=1*86400,
theta0_idx=0, detector=None, BSGL=False, minCoverFreq=None,
maxCoverFreq=None, earth_ephem=None, sun_ephem=None):
"""
Parameters
label, outdir: str
......@@ -1709,7 +1710,7 @@ _ sftfilepath: str
theta_keys
nglitch: int
The number of glitches to allow
tref, tstart, tend: int
tref, minStartTime, maxStartTime: int
GPS seconds of the reference time, start time and end time
nsteps: list (m,)
List specifying the number of steps to take, the last two entries
......@@ -1748,8 +1749,6 @@ _ sftfilepath: str
logging.info(('Set-up MCMC glitch search with {} glitches for model {}'
' on data {}').format(self.nglitch, self.label,
self.sftfilepath))
self.minStartTime = tstart
self.maxStartTime = tend
self.pickle_path = '{}/{}_saved_data.p'.format(self.outdir, self.label)
self.unpack_input_theta()
self.ndim = len(self.theta_keys)
......@@ -1772,16 +1771,16 @@ _ sftfilepath: str
logging.info('Setting up search object')
self.search = SemiCoherentGlitchSearch(
label=self.label, outdir=self.outdir, sftfilepath=self.sftfilepath,
tref=self.tref, tstart=self.tstart,
tend=self.tend, minCoverFreq=self.minCoverFreq,
tref=self.tref, minStartTime=self.minStartTime,
maxStartTime=self.maxStartTime, minCoverFreq=self.minCoverFreq,
maxCoverFreq=self.maxCoverFreq, earth_ephem=self.earth_ephem,
sun_ephem=self.sun_ephem, detector=self.detector, BSGL=self.BSGL,
nglitch=self.nglitch, theta0_idx=self.theta0_idx,
minStartTime=self.minStartTime, maxStartTime=self.maxStartTime)
nglitch=self.nglitch, theta0_idx=self.theta0_idx)
def logp(self, theta_vals, theta_prior, theta_keys, search):
if self.nglitch > 1:
ts = [self.tstart] + list(theta_vals[-self.nglitch:]) + [self.tend]
ts = ([self.minStartTime] + list(theta_vals[-self.nglitch:])
+ [self.maxStartTime])
if np.array_equal(ts, np.sort(ts)) is False:
return -np.inf
if any(np.diff(ts) < self.dtglitchmin):
......@@ -1793,7 +1792,8 @@ _ sftfilepath: str
def logl(self, theta, search):
if self.nglitch > 1:
ts = [self.tstart] + list(theta[-self.nglitch:]) + [self.tend]
ts = ([self.minStartTime] + list(theta_vals[-self.nglitch:])
+ [self.maxStartTime])
if np.array_equal(ts, np.sort(ts)) is False:
return -np.inf
......@@ -1903,7 +1903,7 @@ _ sftfilepath: str
delta_F0s[:self.theta0_idx] *= -1
tglitches = [d['tglitch']]
tboundaries = [self.tstart] + tglitches + [self.tend]
tboundaries = [self.minStartTime] + tglitches + [self.maxStartTime]
for j in range(self.nglitch+1):
ts = tboundaries[j]
......@@ -1916,14 +1916,14 @@ _ sftfilepath: str
F0_j = d['F0'] - summed_deltaF0
taus, twoFs = self.search.calculate_twoF_cumulative(
F0_j, F1=d['F1'], F2=d['F2'], Alpha=d['Alpha'],
Delta=d['Delta'], tstart=ts, tend=te)
Delta=d['Delta'], minStartTime=ts, maxStartTime=te)
elif j >= self.theta0_idx:
summed_deltaF0 = np.sum(delta_F0s[self.theta0_idx:j+1])
F0_j = d['F0'] + summed_deltaF0
taus, twoFs = self.search.calculate_twoF_cumulative(
F0_j, F1=d['F1'], F2=d['F2'], Alpha=d['Alpha'],
Delta=d['Delta'], tstart=ts, tend=te)
Delta=d['Delta'], minStartTime=ts, maxStartTime=te)
ax.plot(ts+taus, twoFs)
ax.set_xlabel('GPS time')
......@@ -2244,7 +2244,7 @@ class MCMCTransientSearch(MCMCSearch):
if self.fixed_theta[1] < 86400:
return -np.inf
self.fixed_theta[1] += self.fixed_theta[0]
if self.fixed_theta[1] > self.tend:
if self.fixed_theta[1] > self.maxStartTime:
return -np.inf
FS = search.run_computefstatistic_single_point(*self.fixed_theta)
return FS
......@@ -2298,9 +2298,10 @@ class GridSearch(BaseSearchClass):
""" Gridded search using ComputeFstat """
@initializer
def __init__(self, label, outdir, sftfilepath, F0s=[0], F1s=[0], F2s=[0],
Alphas=[0], Deltas=[0], tref=None, tstart=None, tend=None,
BSGL=False, minCoverFreq=None, maxCoverFreq=None,
earth_ephem=None, sun_ephem=None, detector=None):
Alphas=[0], Deltas=[0], tref=None, minStartTime=None,
maxStartTime=None, BSGL=False, minCoverFreq=None,
maxCoverFreq=None, earth_ephem=None, sun_ephem=None,
detector=None):
"""
Parameters
----------
......@@ -2311,15 +2312,12 @@ class GridSearch(BaseSearchClass):
F0s, F1s, F2s, delta_F0s, delta_F1s, tglitchs, Alphas, Deltas: tuple
Length 3 tuple describing the grid for each parameter, e.g
[F0min, F0max, dF0], for a fixed value simply give [F0].
tref, tstart, tend: int
tref, minStartTime, maxStartTime: int
GPS seconds of the reference time, start time and end time
For all other parameters, see `pyfstat.ComputeFStat` for details
"""
self.minStartTime = tstart
self.maxStartTime = tend
if earth_ephem is None:
self.earth_ephem = self.earth_ephem_default
if sun_ephem is None:
......@@ -2348,7 +2346,7 @@ class GridSearch(BaseSearchClass):
def get_input_data_array(self):
arrays = []
for tup in ([self.tstart], [self.tend], self.F0s, self.F1s, self.F2s,
for tup in ([self.minStartTime], [self.maxStartTime], self.F0s, self.F1s, self.F2s,
self.Alphas, self.Deltas):
arrays.append(self.get_array_from_tuple(tup))
......@@ -2501,8 +2499,8 @@ class GridSearch(BaseSearchClass):
twoF = self.data[:, -1]
idx = np.argmax(twoF)
v = self.data[idx, :]
d = OrderedDict(tstart=v[0], tend=v[1], F0=v[2], F1=v[3], F2=v[4],
Alpha=v[5], Delta=v[6], twoF=v[7])
d = OrderedDict(minStartTime=v[0], maxStartTime=v[1], F0=v[2], F1=v[3],
F2=v[4], Alpha=v[5], Delta=v[6], twoF=v[7])
return d
def print_max_twoF(self):
......@@ -2517,9 +2515,9 @@ class GridGlitchSearch(GridSearch):
@initializer
def __init__(self, label, outdir, sftfilepath=None, F0s=[0],
F1s=[0], F2s=[0], delta_F0s=[0], delta_F1s=[0], tglitchs=None,
Alphas=[0], Deltas=[0], tref=None, tstart=None, tend=None,
minCoverFreq=None, maxCoverFreq=None, write_after=1000,
earth_ephem=None, sun_ephem=None):
Alphas=[0], Deltas=[0], tref=None, minStartTime=None,
maxStartTime=None, minCoverFreq=None, maxCoverFreq=None,
write_after=1000, earth_ephem=None, sun_ephem=None):
"""
Parameters
......@@ -2531,13 +2529,13 @@ class GridGlitchSearch(GridSearch):
F0s, F1s, F2s, delta_F0s, delta_F1s, tglitchs, Alphas, Deltas: tuple
Length 3 tuple describing the grid for each parameter, e.g
[F0min, F0max, dF0], for a fixed value simply give [F0].
tref, tstart, tend: int
tref, minStartTime, maxStartTime: int
GPS seconds of the reference time, start time and end time
For all other parameters, see pyfstat.ComputeFStat.
"""
if tglitchs is None:
self.tglitchs = [self.tend]
self.tglitchs = [self.maxStartTime]
if earth_ephem is None:
self.earth_ephem = self.earth_ephem_default
if sun_ephem is None:
......@@ -2545,9 +2543,10 @@ class GridGlitchSearch(GridSearch):
self.search = SemiCoherentGlitchSearch(
label=label, outdir=outdir, sftfilepath=self.sftfilepath,
tref=tref, tstart=tstart, tend=tend, minCoverFreq=minCoverFreq,
maxCoverFreq=maxCoverFreq, earth_ephem=self.earth_ephem,
sun_ephem=self.sun_ephem, BSGL=self.BSGL)
tref=tref, minStartTime=minStartTime, maxStartTime=maxStartTime,
minCoverFreq=minCoverFreq, maxCoverFreq=maxCoverFreq,
earth_ephem=self.earth_ephem, sun_ephem=self.sun_ephem,
BSGL=self.BSGL)
if os.path.isdir(outdir) is False:
os.mkdir(outdir)
......@@ -2578,7 +2577,7 @@ class Writer(BaseSearchClass):
tref=None, phi=0, F0=30, F1=1e-10, F2=0, Alpha=5e-3,
Delta=6e-2, h0=0.1, cosi=0.0, psi=0.0, Tsft=1800, outdir=".",
sqrtSX=1, Band=4, detector='H1', data_tstart=None,
data_duration=None):
minStartTime=None, maxStartTime=None):
"""
Parameters
----------
......@@ -2598,7 +2597,7 @@ class Writer(BaseSearchClass):
pre-glitch phase, frequency, sky-position, and signal properties
Tsft: float
the sft duration
data_tstart, data_duration: float
minStartTime, maxStartTime: float
if not None, the total span of data, this can be used to generate
transient signals
......@@ -2609,6 +2608,10 @@ class Writer(BaseSearchClass):
if np.size(d) == 1:
d = [d]
self.tend = self.tstart + self.duration
if self.minStartTime is None:
self.minStartTime = self.tstart
if self.maxStartTime is None:
self.maxStartTime = self.tend
if self.dtglitch is None or self.dtglitch == self.duration:
self.tbounds = [self.tstart, self.tend]
elif np.size(self.dtglitch) == 1:
......@@ -2767,14 +2770,15 @@ transientTauDays={:1.3f}\n""")
cl.append('--outLabel="{}"'.format(self.label))
cl.append('--IFOs="{}"'.format(self.detector))
cl.append('--sqrtSX="{}"'.format(self.sqrtSX))
if self.data_tstart is None:
if self.minStartTime is None:
cl.append('--startTime={:10.9f}'.format(float(self.tstart)))
else:
cl.append('--startTime={:10.9f}'.format(float(self.data_tstart)))
if self.data_duration is None:
cl.append('--startTime={:10.9f}'.format(float(self.minStartTime)))
if self.maxStartTime is None:
cl.append('--duration={}'.format(int(self.duration)))
else:
cl.append('--duration={}'.format(int(self.data_duration)))
data_duration = self.maxStartTime - self.minStartTime
cl.append('--duration={}'.format(int(data_duration)))
cl.append('--fmin={}'.format(int(self.fmin)))
cl.append('--Band={}'.format(self.Band))
cl.append('--Tsft={}'.format(self.Tsft))
......@@ -2802,8 +2806,8 @@ transientTauDays={:1.3f}\n""")
self.outdir+"/*SFT_"+self.label+"*sft"))
c_l.append("--assumeSqrtSX={}".format(self.sqrtSX))
c_l.append("--minStartTime={}".format(self.tstart))
c_l.append("--maxStartTime={}".format(self.tend))
c_l.append("--minStartTime={}".format(int(self.minStartTime)))
c_l.append("--maxStartTime={}".format(int(self.maxStartTime)))
logging.info("Executing: " + " ".join(c_l) + "\n")
output = subprocess.check_output(" ".join(c_l), shell=True)
......
tests.py
View file @ 17ea6923
......@@ -111,7 +111,7 @@ class TestSemiCoherentGlitchSearch(Test):
def test_compute_nglitch_fstat(self):
duration = 100*86400
dtglitch = 100*43200
dtglitch = .5*100*86400
delta_F0 = 0
Writer = pyfstat.Writer(self.label, outdir=outdir,
duration=duration, dtglitch=dtglitch,
......@@ -122,25 +122,26 @@ class TestSemiCoherentGlitchSearch(Test):
search = pyfstat.SemiCoherentGlitchSearch(
label=self.label, outdir=outdir,
sftfilepath='{}/*{}*sft'.format(Writer.outdir, Writer.label),
tref=Writer.tref, tstart=Writer.tstart, tend=Writer.tend,
nglitch=1)
tref=Writer.tref, minStartTime=Writer.tstart,
maxStartTime=Writer.tend, nglitch=1)
FS = search.compute_nglitch_fstat(Writer.F0, Writer.F1, Writer.F2,
Writer.Alpha, Writer.Delta,
Writer.delta_F0, Writer.delta_F1,
search.tstart+dtglitch)
search.minStartTime+dtglitch)
# Compute the predicted semi-coherent glitch Fstat
tstart = Writer.tstart
tend = Writer.tend
minStartTime = Writer.tstart
maxStartTime = Writer.tend
Writer.tend = tstart + dtglitch
Writer.maxStartTime = minStartTime + dtglitch
FSA = Writer.predict_fstat()
Writer.tstart = tstart + dtglitch
Writer.tend = tend
Writer.tstart = minStartTime + dtglitch
Writer.tend = maxStartTime
FSB = Writer.predict_fstat()
print FSA, FSB
predicted_FS = (FSA + FSB)
print(predicted_FS, FS)
......@@ -156,17 +157,17 @@ class TestMCMCSearch(Test):
F0 = 30
F1 = -1e-10
F2 = 0
tstart = 700000000
minStartTime = 700000000
duration = 100 * 86400
tend = tstart + duration
maxStartTime = minStartTime + duration
Alpha = 5e-3
Delta = 1.2
tref = tstart
tref = minStartTime
dtglitch = duration
delta_F0 = 0
Writer = pyfstat.Writer(F0=F0, F1=F1, F2=F2, label=self.label,
h0=h0, sqrtSX=sqrtSX,
outdir=outdir, tstart=tstart,
outdir=outdir, tstart=minStartTime,
Alpha=Alpha, Delta=Delta, tref=tref,
duration=duration, dtglitch=dtglitch,
delta_F0=delta_F0, Band=4)
......@@ -181,8 +182,8 @@ class TestMCMCSearch(Test):
search = pyfstat.MCMCSearch(
label=self.label, outdir=outdir, theta_prior=theta, tref=tref,
sftfilepath='{}/*{}*sft'.format(Writer.outdir, Writer.label),
tstart=tstart, tend=tend, nsteps=[100, 100], nwalkers=100,
ntemps=1)
minStartTime=minStartTime, maxStartTime=maxStartTime,
nsteps=[100, 100], nwalkers=100, ntemps=1)
search.run()
search.plot_corner(add_prior=True)
_, FS = search.get_max_twoF()
......
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