def sim_systematics(slf, p0new, parinfo, ntxt, edgearr):
"""
This implementation of Sim Systematics uses
the information in 'systematics' (passed in as input)
to refit the continuum of the fake data.
'systematics' should be a keyword red in
from the 'data read' section.
-------------------------------
Systematic errors include:
+ choice of continuum
+ choice of starting parameters
-------------------------------
"""
# Make changes to the continuum
wavf, fluf, errf = np.array([]), np.array([]), np.array([])
stf, enf = [0 for all in slf._posnfull], [0 for all in slf._posnfull]
for sp in range(len(slf._posnfull)):
for sn in range(len(slf._posnfull[sp])-1):
ll = slf._posnfull[sp][sn]
lu = slf._posnfull[sp][sn+1]
if slf._datopt['systmodule'][sp][sn] is None:
# Don't make any systematic corrections to these spectra
msgs.warn("Not applying any systematic corrections to file:"+msgs.newline()+slf._snipnames[sp][sn],verbose=slf._argflag['out']['verbose'])
newfluxfull, newfluefull = np.copy(slf._fluxfull[sp][ll:lu]), np.copy(slf._fluefull[sp][ll:lu])
elif slf._datopt['systmodule'][sp][sn] == 'default' or slf._datopt['systmodule'][sp][sn] == 'continuumpoly':
# The default systematics routine --- fit a polynomial to the continuum
newfluxfull, newfluefull = syst_continuumpoly(slf._wavefull[sp][ll:lu], slf._fluxfull[sp][ll:lu], slf._fluefull[sp][ll:lu], slf._systfull[sp][ll:lu], edgearr[sp][sn], slf._snipnames[sp][sn], verbose=slf._argflag['out']['verbose'])
#elif slf._datopt['systmodule'][sp][sn] == other built-in function:
else:
# If the routine isn't built-in, it must be user-defined
# Get the identifier text
if ',' in slf._datopt['systmodule'][sp][sn]:
filename, idtxt = slf._datopt['systmodule'][sp][sn].split(',')
else:
filename, idtxt = slf._datopt['systmodule'][sp][sn], 'systmodule'
path, file = os.path.split(filename)
name, ext = os.path.splitext(file)
# Set the import loader
impload = srcloader()
modu = impload.find_module_in_dir(name, path)
if not modu: msgs.error("Could not import {0:s}".format(name))
usrsystmod = impload.load_module(name, modu)
newfluxfull, newfluefull = usrsystmod.loader(idtxt, slf._wavefull[sp][ll:lu], slf._fluxfull[sp][ll:lu], slf._fluefull[sp][ll:lu], slf._systfull[sp][ll:lu], edgearr[sp][sn], slf._snipnames[sp][sn])
# Assign the adjusted data to the slf class (and multiply by the user-specified continuum).
slf._fluxfull[sp][ll:lu], slf._fluefull[sp][ll:lu] = copy.deepcopy(newfluxfull)*slf._contfull[sp][ll:lu], copy.deepcopy(newfluefull)*slf._contfull[sp][ll:lu]
# Make the appropriate changes to the fitted spectral region
w = np.where((slf._wavefull[sp][ll:lu] >= slf._posnfit[sp][2*sn+0]) & (slf._wavefull[sp][ll:lu] <= slf._posnfit[sp][2*sn+1]))
wA= np.in1d(slf._wavefull[sp][ll:lu][w], slf._wavefit[sp])
wB= np.where(wA==True)
enf[sp] = stf[sp] + slf._wavefull[sp][ll:lu][w][wB].size
slf._fluxfit[sp][stf[sp]:enf[sp]] = slf._fluxfull[sp][ll:lu][w][wB]
slf._fluefit[sp][stf[sp]:enf[sp]] = slf._fluefull[sp][ll:lu][w][wB]
stf[sp] = enf[sp]
# Place the fitted regions into a single array to be read by th echi-squared fitting program
wavf = np.append(wavf, slf._wavefit[sp])
fluf = np.append(fluf, slf._fluxfit[sp])
errf = np.append(errf, slf._fluefit[sp])
# Make sure all of the new parameters are within parinfo limits
for i in range(len(p0new)):
if parinfo[i]['limited'][0] == 1:
if parinfo[i]['limits'][0] > p0new[i]: p0new[i] = parinfo[i]['limits'][0]
if parinfo[i]['limited'][1] == 1:
if parinfo[i]['limits'][1] < p0new[i]: p0new[i] = parinfo[i]['limits'][1]
parinfo[i]['value'] = p0new[i]
# Update functargs and fit the data!
fdict = slf.__dict__.copy()
fa = {'x':wavf, 'y':fluf, 'err':errf, 'fdict':fdict}
# Calculate the starting chi-squared
start_func = myfunct_wrap(p0new,output=2,**fa)
slf._chisq_init = np.sum(((fluf-start_func)/errf)**2)
if np.isnan(slf._chisq_init): msgs.error("Initial chi-squared is not a number")
if slf._chisq_init == np.Inf: msgs.error("Input chi-squared is Infinite"+msgs.newline()+"Perhaps the error spectrum is zero?")
if slf._argflag['plot']['fits']:
model = myfunct_wrap(p0new,output=3,**fa)
alplot.make_plots_all(slf,model=model)
fileend=raw_input(msgs.input()+"Press enter to view the fits -")
alplot.plot_showall()
# Now fit it!
tstart=time.time()
ms = alfit(myfunct_wrap, p0new, parinfo=parinfo, functkw=fa,
verbose=1, modpass=slf._modpass, miniter=slf._argflag['chisq']['miniter'], maxiter=slf._argflag['chisq']['maxiter'],
ftol=slf._argflag['chisq']['ftol'], gtol=slf._argflag['chisq']['gtol'], xtol=slf._argflag['chisq']['xtol'],
ncpus=slf._argflag['run']['ncpus'], fstep=slf._argflag['chisq']['fstep'])
tend=time.time()
if ms.status <= 0:
if ms.status == -20:
msgs.info("Systematics simulation was interrupted",verbose=slf._argflag['out']['verbose'])
return
else: msgs.error(ms.errmsg)
else:
msgs.info("Reason for convergence:"+msgs.newline()+alutils.getreason(ms.status,verbose=slf._argflag['out']['verbose']),verbose=slf._argflag['out']['verbose'])
if ms.perror is None:
msgs.bug("Errors returned from systematics fit is None",verbose=slf._argflag['out']['verbose'])
msgs.error("Cannot continue with the simulations")
# Plot the data (if requested)
if slf._argflag['plot']['fits']:
model = myfunct_wrap(ms.params,output=3,**fa)
alplot.make_plots_all(slf,model=model)
fileend=raw_input(msgs.input()+"Press enter to view the fits -")
alplot.plot_showall()
# Get the results and print them to file
alsave.save_model(slf, ms.params, ms.perror, [(tend - tstart)/3600.0, ms.fnorm, ms.dof, ms.niter, ms.status], printout=False, extratxt=[slf._argflag['sim']['dirname']+'/',".syst"+ntxt])
return ms
def perturb(slf, covar, bparams, parinfo):
# Decide how many characters to use for output files
nchr = str(np.int(np.log10(slf._argflag['sim']['perturb']))+1)
# Create the directory structure for the simulations
make_directory(slf._argflag['sim']['dirname'],overwrite=slf._argflag['out']['overwrite'],verbose=slf._argflag['out']['verbose'])
# Grab the best-fitting model
perror = np.sqrt(np.diag(covar))
# Store the starting parameters in an array
outpert = np.array([slf._modpass['p0']])
wavf, fluf, errf = np.array([]), np.array([]), np.array([])
for sp in range(len(slf._posnfull)):
wavf = np.append(wavf, slf._wavefit[sp].copy())
fluf = np.append(fluf, slf._fluxfit[sp].copy())
errf = np.append(errf, slf._fluefit[sp].copy())
# Find the non-zero elements in the covariance matrix
cvsize = covar.shape[0]
cxzero, cyzero = np.where(covar==0.0)
bxzero, byzero = np.bincount(cxzero), np.bincount(cyzero)
wxzero, wyzero = np.where(bxzero==cvsize)[0], np.where(byzero==cvsize)[0]
zrocol = np.intersect1d(wxzero, wyzero) # This is the list of columns (or rows), where all elements are zero
# Create a mask for the non-zero elements
mask=np.zeros_like(covar)
mask[:,zrocol],mask[zrocol,:]=1,1
cvnz=np.zeros((cvsize-zrocol.size,cvsize-zrocol.size))
cvnz[np.where(cvnz==0.0)]=covar[np.where(mask==0.0)]
# Generate a new set of starting parameters from the covariance matrix
X_covar_fit=np.matrix(np.random.standard_normal((cvnz.shape[0],slf._argflag['sim']['perturb'])))
C_covar_fit=np.matrix(cvnz)
U_covar_fit=np.linalg.cholesky(C_covar_fit)
Y_covar_fit=U_covar_fit * X_covar_fit
# Run through the simulations
for sim in range(slf._argflag['sim']['perturb']):
ntxt="{0:0"+nchr+"d}"
ntxt=ntxt.format(sim+slf._argflag['sim']['startid']) # Text Identifier used as output
msgs.test("PERTURB -- Realisation {0:s}/{1:s} began {2:s}".format(str(sim+1),str(slf._argflag['sim']['perturb']),time.ctime()),verbose=slf._argflag['out']['verbose'])
# Enter the new starting parameters
p0new = []
cntr=0
for pw in range(len(slf._modpass['p0'])):
if perror[pw] > 0.0:
# Check that the maximum level of perturbation has not been reached
if slf._modpass['p0'][pw] != 0.0:
if (Y_covar_fit[cntr,sim]).flatten()[0]/slf._modpass['p0'][pw] > slf._argflag['sim']['maxperturb']:
p0new.append( slf._modpass['p0'][pw]*(1.0+slf._argflag['sim']['maxperturb']) )
cntr+=1
elif (Y_covar_fit[cntr,sim]).flatten()[0]/slf._modpass['p0'][pw] < -1.0*slf._argflag['sim']['maxperturb']:
p0new.append( slf._modpass['p0'][pw]*(1.0-slf._argflag['sim']['maxperturb']) )
cntr+=1
else:
p0new.append( slf._modpass['p0'][pw]+(Y_covar_fit[cntr,sim]).flatten()[0] )
cntr+=1
else:
p0new.append( slf._modpass['p0'][pw]+(Y_covar_fit[cntr,sim]).flatten()[0] )
cntr+=1
else: p0new.append(slf._modpass['p0'][pw])
# Make sure all of the new parameters are within parinfo limits
for i in range(len(p0new)):
if parinfo[i]['limited'][0] == 1:
if parinfo[i]['limits'][0] > p0new[i]: p0new[i] = parinfo[i]['limits'][0]
if parinfo[i]['limited'][1] == 1:
if parinfo[i]['limits'][1] < p0new[i]: p0new[i] = parinfo[i]['limits'][1]
parinfo[i]['value'] = p0new[i]
#alsave.save_model(slf, p0new, mfit.perror, [(0.0 - 0.0)/3600.0, mfit.fnorm, mfit.dof, mfit.niter, mfit.status], printout=False, extratxt=[slf._argflag['sim']['dirname']+'/',".new"])
#np.savetxt(slf._argflag['run']['modname']+'.covar',mfit.covar)
fdict = slf.__dict__.copy()
fa = {'x':wavf, 'y':fluf, 'err':errf, 'fdict':fdict}
# Calculate the starting chi-squared
start_func = myfunct_wrap(p0new,output=2,**fa)
slf._chisq_init = np.sum(((fluf-start_func)/errf)**2)
if np.isnan(slf._chisq_init): msgs.error("Initial chi-squared is not a number")
if slf._chisq_init == np.Inf: msgs.error("Input chi-squared is Infinite"+msgs.newline()+"Perhaps the error spectrum is zero?")
# Fit the realisation
# msgs.info("Using {0:d} CPUs".format(slf._argflag['run']['ncpus']),verbose=slf._argflag['out']['verbose'])
tstart=time.time()
mr = alfit(myfunct_wrap, p0new, parinfo=parinfo, functkw=fa,
verbose=1, modpass=slf._modpass, miniter=slf._argflag['chisq']['miniter'], maxiter=slf._argflag['chisq']['maxiter'],
ftol=slf._argflag['chisq']['ftol'], gtol=slf._argflag['chisq']['gtol'], xtol=slf._argflag['chisq']['xtol'],
ncpus=slf._argflag['run']['ncpus'], fstep=slf._argflag['chisq']['fstep'])
# mr = alfit(myfunct_wrap, slf._modpass['p0'], parinfo=parinfo, functkw=fa,
# verbose=0, modpass=slf._modpass, miniter=slf._argflag['chisq']['miniter'], maxiter=slf._argflag['chisq']['maxiter'],
# ftol=slf._argflag['chisq']['ftol'], gtol=slf._argflag['chisq']['gtol'], xtol=slf._argflag['chisq']['xtol'],
# ncpus=slf._argflag['run']['ncpus'], fstep=slf._argflag['chisq']['fstep'])
tend=time.time()
if mr.status <= 0:
if mr.status == -20:
msgs.info("Simulation was interrupted",verbose=slf._argflag['out']['verbose'])
return
else: msgs.error(mr.errmsg)
else:
msgs.info("Reason for convergence:"+msgs.newline()+alutils.getreason(mr.status,verbose=slf._argflag['out']['verbose']),verbose=slf._argflag['out']['verbose'])
if mr.perror is None:
msgs.bug("Errors returned from perturbed fit is None",verbose=slf._argflag['out']['verbose'])
msgs.error("Cannot continue with the simulations")
# Get the results and print them to file
outpert = np.append(outpert, np.array([np.array(mr.params)]),axis=0)
alsave.save_model(slf, mr.params, mr.perror, [(tend - tstart)/3600.0, mr.fnorm, mr.dof, mr.niter, mr.status], printout=False, extratxt=[slf._argflag['sim']['dirname']+'/',".perturb"+ntxt])
# Plot the data (if requested)
if slf._argflag['plot']['fits']:
model = myfunct_wrap(mr.params,output=3,**fa)
alplot.make_plots_all(slf, model=model)
fileend=raw_input(msgs.input()+"Press enter to view the fits -")
alplot.plot_showall()
ntxt=":0"+nchr+"d}"
outname="{0:s}.{1:s}_{2"+ntxt+"-{3"+ntxt
msgs.info("Saving the results from the simulations",verbose=slf._argflag['out']['verbose'])
pertname=outname.format(slf._argflag['run']['modname'],'perturb',slf._argflag['sim']['startid'],slf._argflag['sim']['perturb']+slf._argflag['sim']['startid'])
np.savetxt(pertname,outpert)
return
def sim_random(slf, covar, bparams, parinfo):
# Decide how many characters to use for output files
nchr = str(np.int(np.log10(slf._argflag['sim']['random']))+1)
# Create the directory structure for the simulations
make_directory(slf._argflag['sim']['dirname'],overwrite=slf._argflag['out']['overwrite'],verbose=slf._argflag['out']['verbose'])
# Grab the best-fitting model
perror = np.sqrt(np.diag(covar))
modlt = copy.deepcopy(slf._modconv_all)
outrand, outsyst = np.array([slf._modpass['p0']]), np.array([slf._modpass['p0']]) # Store the starting parameters in an array
wavf, errf = np.array([]), np.array([])
fluefull, fluefit = copy.deepcopy(slf._fluefull), copy.deepcopy(slf._fluefit)
# Check for edge effects due to convolution and create the new wave and error arrays.
# First find out which indices correspond to convolution
cvind=[]
for i in range(len(slf._modpass['emab'])):
if slf._modpass['emab'][i] == 'cv': cvind.append(i)
edgearr=[[] for i in range(len(slf._posnfit))]
iind=0
for sp in range(len(slf._posnfull)):
for sn in range(len(slf._posnfull[sp])-1):
ll = slf._posnfull[sp][sn]
lu = slf._posnfull[sp][sn+1]
getstdd=[slf._argflag['sim']['edgecut'],slf._wavefull[sp][ll],slf._wavefull[sp][lu-1]]
mtyp = slf._modpass['mtyp'][cvind[iind]]
slf._funcarray[2][mtyp]._keywd = slf._modpass['mkey'][cvind[iind]]
wvl, wvu = slf._funcarray[1][mtyp].set_vars(slf._funcarray[2][mtyp], bparams, slf._levadd[cvind[iind]], slf._modpass, cvind[iind], getstdd=getstdd)
if wvl > slf._posnfit[sp][2*sn+0] or wvu < slf._posnfit[sp][2*sn+1]:
msgs.warn("The random simulations cannot be trusted. The fitted is"+msgs.newline()+
"affected by edge effects from convolution. It is recommended"+msgs.newline()+
"that you input more data outside the fitted regions for:"+msgs.newline()+
slf._snipnames[sp][sn],verbose=slf._argflag['out']['verbose'])
edgearr[sp].append([wvl,wvu])
iind += 1
wavf = np.append(wavf, slf._wavefit[sp].copy())
errf = np.append(errf, slf._fluefit[sp].copy())
# Find the non-zero elements in the covariance matrix
cvsize = covar.shape[0]
cxzero, cyzero = np.where(covar==0.0)
bxzero, byzero = np.bincount(cxzero), np.bincount(cyzero)
wxzero, wyzero = np.where(bxzero==cvsize)[0], np.where(byzero==cvsize)[0]
zrocol = np.intersect1d(wxzero, wyzero) # This is the list of columns (or rows), where all elements are zero
# Create a mask for the non-zero elements
mask=np.zeros_like(covar)
mask[:,zrocol],mask[zrocol,:]=1,1
cvnz=np.zeros((cvsize-zrocol.size,cvsize-zrocol.size))
cvnz[np.where(cvnz==0.0)]=covar[np.where(mask==0.0)]
# Generate a new set of starting parameters from the covariance matrix
if slf._argflag['sim']['newstart']:
X_covar_fit=np.matrix(np.random.standard_normal((cvnz.shape[0],slf._argflag['sim']['random'])))
C_covar_fit=np.matrix(cvnz)
U_covar_fit=np.linalg.cholesky(C_covar_fit)
Y_covar_fit=U_covar_fit * X_covar_fit
# Run through the simulations
for sim in range(slf._argflag['sim']['random']):
ntxt="{0:0"+nchr+"d}"
ntxt=ntxt.format(sim+slf._argflag['sim']['startid']) # Text Identifier used as output
msgs.test("RANDOM ERRORS -- Realisation {0:s}/{1:s} began {2:s}".format(str(sim+1),str(slf._argflag['sim']['random']),time.ctime()),verbose=slf._argflag['out']['verbose'])
# Generate a random realisation
newfluxfull, newfluxfit = [], []
fluf = np.array([])
for sp in range(len(slf._posnfull)):
newfluxfull.append(np.random.normal(modlt[sp],fluefull[sp]))
newfluxfit.append(np.array([]))
for sn in range(len(slf._posnfull[sp])-1):
ll = slf._posnfull[sp][sn]
lu = slf._posnfull[sp][sn+1]
w = np.where((slf._wavefull[sp][ll:lu] >= slf._posnfit[sp][2*sn+0]) & (slf._wavefull[sp][ll:lu] <= slf._posnfit[sp][2*sn+1]))
wA= np.in1d(slf._wavefull[sp][ll:lu][w], slf._wavefit[sp])
wB= np.where(wA==True)
newfluxfit[sp] = np.append(newfluxfit[sp], np.copy(newfluxfull[sp][ll:lu][w][wB]))
fluf = np.append(fluf, np.copy(newfluxfull[sp][ll:lu][w][wB]))
slf._fluxfull, slf._fluxfit = copy.deepcopy(newfluxfull), copy.deepcopy(newfluxfit)
slf._fluefull, slf._fluefit = copy.deepcopy(fluefull), copy.deepcopy(fluefit)
p0new = []
if slf._argflag['sim']['newstart']:
cntr=0
for pw in range(len(slf._modpass['p0'])):
if perror[pw] > 0.0:
p0new.append( slf._modpass['p0'][pw]+(Y_covar_fit[cntr,sim]).flatten()[0] )
cntr+=1
else: p0new.append(slf._modpass['p0'][pw])
else: p0new = slf._modpass['p0']
#alsave.save_model(slf, p0new, mfit.perror, [(0.0 - 0.0)/3600.0, mfit.fnorm, mfit.dof, mfit.niter, mfit.status], printout=False, extratxt=[slf._argflag['sim']['dirname']+'/',".new"])
#np.savetxt(slf._argflag['run']['modname']+'.covar',mfit.covar)
fdict = slf.__dict__.copy()
fa = {'x':wavf, 'y':fluf, 'err':errf, 'fdict':fdict}
# Calculate the starting chi-squared
start_func = myfunct_wrap(slf._modpass['p0'],output=2,**fa)
slf._chisq_init = np.sum(((fluf-start_func)/errf)**2)
if np.isnan(slf._chisq_init): msgs.error("Initial chi-squared is not a number")
if slf._chisq_init == np.Inf: msgs.error("Input chi-squared is Infinite"+msgs.newline()+"Perhaps the error spectrum is zero?")
# Fit the realisation
# msgs.info("Using {0:d} CPUs".format(slf._argflag['run']['ncpus']),verbose=slf._argflag['out']['verbose'])
tstart=time.time()
mr = alfit(myfunct_wrap, slf._modpass['p0'], parinfo=parinfo, functkw=fa,
verbose=1, modpass=slf._modpass, miniter=slf._argflag['chisq']['miniter'], maxiter=slf._argflag['chisq']['maxiter'],
ftol=slf._argflag['chisq']['ftol'], gtol=slf._argflag['chisq']['gtol'], xtol=slf._argflag['chisq']['xtol'],
ncpus=slf._argflag['run']['ncpus'], fstep=slf._argflag['chisq']['fstep'])
# mr = alfit(myfunct_wrap, slf._modpass['p0'], parinfo=parinfo, functkw=fa,
# verbose=0, modpass=slf._modpass, miniter=slf._argflag['chisq']['miniter'], maxiter=slf._argflag['chisq']['maxiter'],
# ftol=slf._argflag['chisq']['ftol'], gtol=slf._argflag['chisq']['gtol'], xtol=slf._argflag['chisq']['xtol'],
# ncpus=slf._argflag['run']['ncpus'], fstep=slf._argflag['chisq']['fstep'])
tend=time.time()
if mr.status <= 0:
if mr.status == -20:
msgs.info("Random simulation was interrupted",verbose=slf._argflag['out']['verbose'])
return
else: msgs.error(mr.errmsg)
else:
msgs.info("Reason for convergence:"+msgs.newline()+alutils.getreason(mr.status,verbose=slf._argflag['out']['verbose']),verbose=slf._argflag['out']['verbose'])
if mr.perror is None:
msgs.bug("Errors returned from random fit is None",verbose=slf._argflag['out']['verbose'])
msgs.error("Cannot continue with the simulations")
# Get the results and print them to file
outrand = np.append(outrand, np.array([np.array(mr.params)]),axis=0)
alsave.save_model(slf, mr.params, mr.perror, [(tend - tstart)/3600.0, mr.fnorm, mr.dof, mr.niter, mr.status], printout=False, extratxt=[slf._argflag['sim']['dirname']+'/',".rand"+ntxt])
# Plot the data (if requested)
if slf._argflag['plot']['fits']:
model = myfunct_wrap(mr.params,output=3,**fa)
alplot.make_plots_all(slf, model=model)
fileend=raw_input(msgs.input()+"Press enter to view the fits -")
alplot.plot_showall()
if slf._argflag['sim']['systematics']:
# Calculate the systematics
msgs.test("SYSTEMATIC ERRORS -- Realisation {0:s}/{1:s} began {2:s}".format(str(sim+1),str(slf._argflag['sim']['random']),time.ctime()),verbose=slf._argflag['out']['verbose'])
ms = sim_systematics(slf, p0new, parinfo, ntxt, edgearr)
outsyst = np.append(outsyst, np.array([np.array(ms.params)]),axis=0)
ntxt=":0"+nchr+"d}"
outname="{0:s}.{1:s}_{2"+ntxt+"-{3"+ntxt
msgs.info("Saving the results from the random simulations",verbose=slf._argflag['out']['verbose'])
randname=outname.format(slf._argflag['run']['modname'],'rand',slf._argflag['sim']['startid'],slf._argflag['sim']['random']+slf._argflag['sim']['startid'])
np.savetxt(randname,outrand)
if slf._argflag['sim']['systematics']:
msgs.info("Saving the results from the systematics simulations",verbose=slf._argflag['out']['verbose'])
systname=outname.format(slf._argflag['run']['modname'],'syst',slf._argflag['sim']['startid'],slf._argflag['sim']['random']+slf._argflag['sim']['startid'])
np.savetxt(systname,outsyst)
return
def sim_systematics(slf, p0new, parinfo, ntxt, edgearr):
"""
This implementation of Sim Systematics uses
the information in 'systematics' (passed in as input)
to refit the continuum of the fake data.
'systematics' should be a keyword red in
from the 'data read' section.
-------------------------------
Systematic errors include:
+ choice of continuum
+ choice of starting parameters
-------------------------------
"""
from alis.alis import myfunct_wrap
# Make changes to the continuum
wavf, fluf, errf = np.array([]), np.array([]), np.array([])
stf, enf = [0 for all in slf._posnfull], [0 for all in slf._posnfull]
for sp in range(len(slf._posnfull)):
for sn in range(len(slf._posnfull[sp]) - 1):
ll = slf._posnfull[sp][sn]
lu = slf._posnfull[sp][sn + 1]
if slf._datopt['systmodule'][sp][sn] is None:
# Don't make any systematic corrections to these spectra
msgs.warn("Not applying any systematic corrections to file:" +
msgs.newline() + slf._snipnames[sp][sn],
verbose=slf._argflag['out']['verbose'])
newfluxfull, newfluefull = np.copy(
slf._fluxfull[sp][ll:lu]), np.copy(
slf._fluefull[sp][ll:lu])
elif slf._datopt['systmodule'][sp][sn] == 'default' or slf._datopt[
'systmodule'][sp][sn] == 'continuumpoly':
# The default systematics routine --- fit a polynomial to the continuum
newfluxfull, newfluefull = syst_continuumpoly(
slf._wavefull[sp][ll:lu],
slf._fluxfull[sp][ll:lu],
slf._fluefull[sp][ll:lu],
slf._systfull[sp][ll:lu],
edgearr[sp][sn],
slf._snipnames[sp][sn],
verbose=slf._argflag['out']['verbose'])
#elif slf._datopt['systmodule'][sp][sn] == other built-in function:
else:
# If the routine isn't built-in, it must be user-defined
# Get the identifier text
if ',' in slf._datopt['systmodule'][sp][sn]:
filename, idtxt = slf._datopt['systmodule'][sp][sn].split(
',')
else:
filename, idtxt = slf._datopt['systmodule'][sp][
sn], 'systmodule'
path, file = os.path.split(filename)
name, ext = os.path.splitext(file)
# Set the import loader
impload = srcloader()
modu = impload.find_module_in_dir(name, path)
if not modu: msgs.error("Could not import {0:s}".format(name))
usrsystmod = impload.load_module(name, modu)
newfluxfull, newfluefull = usrsystmod.loader(
idtxt, slf._wavefull[sp][ll:lu], slf._fluxfull[sp][ll:lu],
slf._fluefull[sp][ll:lu], slf._systfull[sp][ll:lu],
edgearr[sp][sn], slf._snipnames[sp][sn])
# Assign the adjusted data to the slf class (and multiply by the user-specified continuum).
slf._fluxfull[sp][ll:lu], slf._fluefull[sp][ll:lu] = copy.deepcopy(
newfluxfull) * slf._contfull[sp][ll:lu], copy.deepcopy(
newfluefull) * slf._contfull[sp][ll:lu]
# Make the appropriate changes to the fitted spectral region
w = np.where(
(slf._wavefull[sp][ll:lu] >= slf._posnfit[sp][2 * sn + 0])
& (slf._wavefull[sp][ll:lu] <= slf._posnfit[sp][2 * sn + 1]))
wA = np.in1d(slf._wavefull[sp][ll:lu][w], slf._wavefit[sp])
wB = np.where(wA == True)
enf[sp] = stf[sp] + slf._wavefull[sp][ll:lu][w][wB].size
slf._fluxfit[sp][stf[sp]:enf[sp]] = slf._fluxfull[sp][ll:lu][w][wB]
slf._fluefit[sp][stf[sp]:enf[sp]] = slf._fluefull[sp][ll:lu][w][wB]
stf[sp] = enf[sp]
# Place the fitted regions into a single array to be read by th echi-squared fitting program
wavf = np.append(wavf, slf._wavefit[sp])
fluf = np.append(fluf, slf._fluxfit[sp])
errf = np.append(errf, slf._fluefit[sp])
# Make sure all of the new parameters are within parinfo limits
for i in range(len(p0new)):
if parinfo[i]['limited'][0] == 1:
if parinfo[i]['limits'][0] > p0new[i]:
p0new[i] = parinfo[i]['limits'][0]
if parinfo[i]['limited'][1] == 1:
if parinfo[i]['limits'][1] < p0new[i]:
p0new[i] = parinfo[i]['limits'][1]
parinfo[i]['value'] = p0new[i]
# Update functargs and fit the data!
fdict = slf.__dict__.copy()
fa = {'x': wavf, 'y': fluf, 'err': errf, 'fdict': fdict}
# Calculate the starting chi-squared
start_func = myfunct_wrap(p0new, output=2, **fa)
slf._chisq_init = np.sum(((fluf - start_func) / errf)**2)
if np.isnan(slf._chisq_init):
msgs.error("Initial chi-squared is not a number")
if slf._chisq_init == np.Inf:
msgs.error("Input chi-squared is Infinite" + msgs.newline() +
"Perhaps the error spectrum is zero?")
if slf._argflag['plot']['fits']:
model = myfunct_wrap(p0new, output=3, **fa)
alplot.make_plots_all(slf, model=model)
fileend = raw_input(msgs.input() + "Press enter to view the fits -")
alplot.plot_showall()
# Now fit it!
tstart = time.time()
ms = alfit(myfunct_wrap,
p0new,
parinfo=parinfo,
functkw=fa,
verbose=1,
modpass=slf._modpass,
miniter=slf._argflag['chisq']['miniter'],
maxiter=slf._argflag['chisq']['maxiter'],
ftol=slf._argflag['chisq']['ftol'],
gtol=slf._argflag['chisq']['gtol'],
xtol=slf._argflag['chisq']['xtol'],
ncpus=slf._argflag['run']['ncpus'],
fstep=slf._argflag['chisq']['fstep'])
tend = time.time()
if ms.status <= 0:
if ms.status == -20:
msgs.info("Systematics simulation was interrupted",
verbose=slf._argflag['out']['verbose'])
return
else:
msgs.error(ms.errmsg)
else:
msgs.info("Reason for convergence:" + msgs.newline() +
alutils.getreason(ms.status,
verbose=slf._argflag['out']['verbose']),
verbose=slf._argflag['out']['verbose'])
if ms.perror is None:
msgs.bug("Errors returned from systematics fit is None",
verbose=slf._argflag['out']['verbose'])
msgs.error("Cannot continue with the simulations")
# Plot the data (if requested)
if slf._argflag['plot']['fits']:
model = myfunct_wrap(ms.params, output=3, **fa)
alplot.make_plots_all(slf, model=model)
fileend = raw_input(msgs.input() + "Press enter to view the fits -")
alplot.plot_showall()
# Get the results and print them to file
alsave.save_model(
slf,
ms.params,
ms.perror,
[(tend - tstart) / 3600.0, ms.fnorm, ms.dof, ms.niter, ms.status],
printout=False,
extratxt=[slf._argflag['sim']['dirname'] + '/', ".syst" + ntxt])
return ms
def perturb(slf, covar, bparams, parinfo):
from alis.alis import myfunct_wrap
# Decide how many characters to use for output files
nchr = str(np.int(np.log10(slf._argflag['sim']['perturb'])) + 1)
# Create the directory structure for the simulations
make_directory(slf._argflag['sim']['dirname'],
overwrite=slf._argflag['out']['overwrite'],
verbose=slf._argflag['out']['verbose'])
# Grab the best-fitting model
perror = np.sqrt(np.diag(covar))
# Store the starting parameters in an array
outpert = np.array([slf._modpass['p0']])
wavf, fluf, errf = np.array([]), np.array([]), np.array([])
for sp in range(len(slf._posnfull)):
wavf = np.append(wavf, slf._wavefit[sp].copy())
fluf = np.append(fluf, slf._fluxfit[sp].copy())
errf = np.append(errf, slf._fluefit[sp].copy())
# Find the non-zero elements in the covariance matrix
cvsize = covar.shape[0]
cxzero, cyzero = np.where(covar == 0.0)
bxzero, byzero = np.bincount(cxzero), np.bincount(cyzero)
wxzero, wyzero = np.where(bxzero == cvsize)[0], np.where(
byzero == cvsize)[0]
zrocol = np.intersect1d(
wxzero, wyzero
) # This is the list of columns (or rows), where all elements are zero
# Create a mask for the non-zero elements
mask = np.zeros_like(covar)
mask[:, zrocol], mask[zrocol, :] = 1, 1
cvnz = np.zeros((cvsize - zrocol.size, cvsize - zrocol.size))
cvnz[np.where(cvnz == 0.0)] = covar[np.where(mask == 0.0)]
# Generate a new set of starting parameters from the covariance matrix
X_covar_fit = np.matrix(
np.random.standard_normal(
(cvnz.shape[0], slf._argflag['sim']['perturb'])))
C_covar_fit = np.matrix(cvnz)
U_covar_fit = np.linalg.cholesky(C_covar_fit)
Y_covar_fit = U_covar_fit * X_covar_fit
# Run through the simulations
for sim in range(slf._argflag['sim']['perturb']):
ntxt = "{0:0" + nchr + "d}"
ntxt = ntxt.format(
sim +
slf._argflag['sim']['startid']) # Text Identifier used as output
msgs.test("PERTURB -- Realisation {0:s}/{1:s} began {2:s}".format(
str(sim + 1), str(slf._argflag['sim']['perturb']), time.ctime()),
verbose=slf._argflag['out']['verbose'])
# Enter the new starting parameters
p0new = []
cntr = 0
for pw in range(len(slf._modpass['p0'])):
if perror[pw] > 0.0:
# Check that the maximum level of perturbation has not been reached
if slf._modpass['p0'][pw] != 0.0:
if (Y_covar_fit[cntr, sim]).flatten()[0] / slf._modpass[
'p0'][pw] > slf._argflag['sim']['maxperturb']:
p0new.append(slf._modpass['p0'][pw] *
(1.0 + slf._argflag['sim']['maxperturb']))
cntr += 1
elif (Y_covar_fit[cntr, sim]
).flatten()[0] / slf._modpass['p0'][
pw] < -1.0 * slf._argflag['sim']['maxperturb']:
p0new.append(slf._modpass['p0'][pw] *
(1.0 - slf._argflag['sim']['maxperturb']))
cntr += 1
else:
p0new.append(slf._modpass['p0'][pw] +
(Y_covar_fit[cntr, sim]).flatten()[0])
cntr += 1
else:
p0new.append(slf._modpass['p0'][pw] +
(Y_covar_fit[cntr, sim]).flatten()[0])
cntr += 1
else:
p0new.append(slf._modpass['p0'][pw])
# Make sure all of the new parameters are within parinfo limits
for i in range(len(p0new)):
if parinfo[i]['limited'][0] == 1:
if parinfo[i]['limits'][0] > p0new[i]:
p0new[i] = parinfo[i]['limits'][0]
if parinfo[i]['limited'][1] == 1:
if parinfo[i]['limits'][1] < p0new[i]:
p0new[i] = parinfo[i]['limits'][1]
parinfo[i]['value'] = p0new[i]
#alsave.save_model(slf, p0new, mfit.perror, [(0.0 - 0.0)/3600.0, mfit.fnorm, mfit.dof, mfit.niter, mfit.status], printout=False, extratxt=[slf._argflag['sim']['dirname']+'/',".new"])
#np.savetxt(slf._argflag['run']['modname']+'.covar',mfit.covar)
fdict = slf.__dict__.copy()
fa = {'x': wavf, 'y': fluf, 'err': errf, 'fdict': fdict}
# Calculate the starting chi-squared
start_func = myfunct_wrap(p0new, output=2, **fa)
slf._chisq_init = np.sum(((fluf - start_func) / errf)**2)
if np.isnan(slf._chisq_init):
msgs.error("Initial chi-squared is not a number")
if slf._chisq_init == np.Inf:
msgs.error("Input chi-squared is Infinite" + msgs.newline() +
"Perhaps the error spectrum is zero?")
# Fit the realisation
# msgs.info("Using {0:d} CPUs".format(slf._argflag['run']['ncpus']),verbose=slf._argflag['out']['verbose'])
tstart = time.time()
mr = alfit(myfunct_wrap,
p0new,
parinfo=parinfo,
functkw=fa,
verbose=1,
modpass=slf._modpass,
miniter=slf._argflag['chisq']['miniter'],
maxiter=slf._argflag['chisq']['maxiter'],
ftol=slf._argflag['chisq']['ftol'],
gtol=slf._argflag['chisq']['gtol'],
xtol=slf._argflag['chisq']['xtol'],
ncpus=slf._argflag['run']['ncpus'],
fstep=slf._argflag['chisq']['fstep'])
# mr = alfit(myfunct_wrap, slf._modpass['p0'], parinfo=parinfo, functkw=fa,
# verbose=0, modpass=slf._modpass, miniter=slf._argflag['chisq']['miniter'], maxiter=slf._argflag['chisq']['maxiter'],
# ftol=slf._argflag['chisq']['ftol'], gtol=slf._argflag['chisq']['gtol'], xtol=slf._argflag['chisq']['xtol'],
# ncpus=slf._argflag['run']['ncpus'], fstep=slf._argflag['chisq']['fstep'])
tend = time.time()
if mr.status <= 0:
if mr.status == -20:
msgs.info("Simulation was interrupted",
verbose=slf._argflag['out']['verbose'])
return
else:
msgs.error(mr.errmsg)
else:
msgs.info("Reason for convergence:" + msgs.newline() +
alutils.getreason(
mr.status, verbose=slf._argflag['out']['verbose']),
verbose=slf._argflag['out']['verbose'])
if mr.perror is None:
msgs.bug("Errors returned from perturbed fit is None",
verbose=slf._argflag['out']['verbose'])
msgs.error("Cannot continue with the simulations")
# Get the results and print them to file
outpert = np.append(outpert, np.array([np.array(mr.params)]), axis=0)
alsave.save_model(
slf,
mr.params,
mr.perror,
[(tend - tstart) / 3600.0, mr.fnorm, mr.dof, mr.niter, mr.status],
printout=False,
extratxt=[slf._argflag['sim']['dirname'] + '/', ".perturb" + ntxt])
# Plot the data (if requested)
if slf._argflag['plot']['fits']:
model = myfunct_wrap(mr.params, output=3, **fa)
alplot.make_plots_all(slf, model=model)
fileend = raw_input(msgs.input() +
"Press enter to view the fits -")
alplot.plot_showall()
ntxt = ":0" + nchr + "d}"
outname = "{0:s}.{1:s}_{2" + ntxt + "-{3" + ntxt
msgs.info("Saving the results from the simulations",
verbose=slf._argflag['out']['verbose'])
pertname = outname.format(
slf._argflag['run']['modname'], 'perturb',
slf._argflag['sim']['startid'],
slf._argflag['sim']['perturb'] + slf._argflag['sim']['startid'])
np.savetxt(pertname, outpert)
return
def sim_random(slf, covar, bparams, parinfo):
from alis.alis import myfunct_wrap
# Decide how many characters to use for output files
nchr = str(np.int(np.log10(slf._argflag['sim']['random'])) + 1)
# Create the directory structure for the simulations
make_directory(slf._argflag['sim']['dirname'],
overwrite=slf._argflag['out']['overwrite'],
verbose=slf._argflag['out']['verbose'])
# Grab the best-fitting model
perror = np.sqrt(np.diag(covar))
modlt = copy.deepcopy(slf._modconv_all)
outrand, outsyst = np.array([slf._modpass['p0']]), np.array(
[slf._modpass['p0']]) # Store the starting parameters in an array
wavf, errf = np.array([]), np.array([])
fluefull, fluefit = copy.deepcopy(slf._fluefull), copy.deepcopy(
slf._fluefit)
# Check for edge effects due to convolution and create the new wave and error arrays.
# First find out which indices correspond to convolution
cvind = []
for i in range(len(slf._modpass['emab'])):
if slf._modpass['emab'][i] == 'cv': cvind.append(i)
edgearr = [[] for i in range(len(slf._posnfit))]
iind = 0
for sp in range(len(slf._posnfull)):
for sn in range(len(slf._posnfull[sp]) - 1):
ll = slf._posnfull[sp][sn]
lu = slf._posnfull[sp][sn + 1]
getstdd = [
slf._argflag['sim']['edgecut'], slf._wavefull[sp][ll],
slf._wavefull[sp][lu - 1]
]
mtyp = slf._modpass['mtyp'][cvind[iind]]
slf._funcarray[2][mtyp]._keywd = slf._modpass['mkey'][cvind[iind]]
wvl, wvu = slf._funcarray[1][mtyp].set_vars(
slf._funcarray[2][mtyp],
bparams,
slf._levadd[cvind[iind]],
slf._modpass,
cvind[iind],
getstdd=getstdd)
if wvl > slf._posnfit[sp][2 * sn +
0] or wvu < slf._posnfit[sp][2 * sn + 1]:
msgs.warn(
"The random simulations cannot be trusted. The fitted is" +
msgs.newline() +
"affected by edge effects from convolution. It is recommended"
+ msgs.newline() +
"that you input more data outside the fitted regions for:"
+ msgs.newline() + slf._snipnames[sp][sn],
verbose=slf._argflag['out']['verbose'])
edgearr[sp].append([wvl, wvu])
iind += 1
wavf = np.append(wavf, slf._wavefit[sp].copy())
errf = np.append(errf, slf._fluefit[sp].copy())
# Find the non-zero elements in the covariance matrix
cvsize = covar.shape[0]
cxzero, cyzero = np.where(covar == 0.0)
bxzero, byzero = np.bincount(cxzero), np.bincount(cyzero)
wxzero, wyzero = np.where(bxzero == cvsize)[0], np.where(
byzero == cvsize)[0]
zrocol = np.intersect1d(
wxzero, wyzero
) # This is the list of columns (or rows), where all elements are zero
# Create a mask for the non-zero elements
mask = np.zeros_like(covar)
mask[:, zrocol], mask[zrocol, :] = 1, 1
cvnz = np.zeros((cvsize - zrocol.size, cvsize - zrocol.size))
cvnz[np.where(cvnz == 0.0)] = covar[np.where(mask == 0.0)]
# Generate a new set of starting parameters from the covariance matrix
if slf._argflag['sim']['newstart']:
X_covar_fit = np.matrix(
np.random.standard_normal(
(cvnz.shape[0], slf._argflag['sim']['random'])))
C_covar_fit = np.matrix(cvnz)
U_covar_fit = np.linalg.cholesky(C_covar_fit)
Y_covar_fit = U_covar_fit * X_covar_fit
# Run through the simulations
for sim in range(slf._argflag['sim']['random']):
ntxt = "{0:0" + nchr + "d}"
ntxt = ntxt.format(
sim +
slf._argflag['sim']['startid']) # Text Identifier used as output
msgs.test(
"RANDOM ERRORS -- Realisation {0:s}/{1:s} began {2:s}".format(
str(sim + 1), str(slf._argflag['sim']['random']),
time.ctime()),
verbose=slf._argflag['out']['verbose'])
# Generate a random realisation
newfluxfull, newfluxfit = [], []
fluf = np.array([])
for sp in range(len(slf._posnfull)):
newfluxfull.append(np.random.normal(modlt[sp], fluefull[sp]))
newfluxfit.append(np.array([]))
for sn in range(len(slf._posnfull[sp]) - 1):
ll = slf._posnfull[sp][sn]
lu = slf._posnfull[sp][sn + 1]
w = np.where(
(slf._wavefull[sp][ll:lu] >= slf._posnfit[sp][2 * sn + 0])
&
(slf._wavefull[sp][ll:lu] <= slf._posnfit[sp][2 * sn + 1]))
wA = np.in1d(slf._wavefull[sp][ll:lu][w], slf._wavefit[sp])
wB = np.where(wA == True)
newfluxfit[sp] = np.append(
newfluxfit[sp], np.copy(newfluxfull[sp][ll:lu][w][wB]))
fluf = np.append(fluf, np.copy(newfluxfull[sp][ll:lu][w][wB]))
slf._fluxfull, slf._fluxfit = copy.deepcopy(
newfluxfull), copy.deepcopy(newfluxfit)
slf._fluefull, slf._fluefit = copy.deepcopy(fluefull), copy.deepcopy(
fluefit)
p0new = []
if slf._argflag['sim']['newstart']:
cntr = 0
for pw in range(len(slf._modpass['p0'])):
if perror[pw] > 0.0:
p0new.append(slf._modpass['p0'][pw] +
(Y_covar_fit[cntr, sim]).flatten()[0])
cntr += 1
else:
p0new.append(slf._modpass['p0'][pw])
else:
p0new = slf._modpass['p0']
#alsave.save_model(slf, p0new, mfit.perror, [(0.0 - 0.0)/3600.0, mfit.fnorm, mfit.dof, mfit.niter, mfit.status], printout=False, extratxt=[slf._argflag['sim']['dirname']+'/',".new"])
#np.savetxt(slf._argflag['run']['modname']+'.covar',mfit.covar)
fdict = slf.__dict__.copy()
fa = {'x': wavf, 'y': fluf, 'err': errf, 'fdict': fdict}
# Calculate the starting chi-squared
start_func = myfunct_wrap(slf._modpass['p0'], output=2, **fa)
slf._chisq_init = np.sum(((fluf - start_func) / errf)**2)
if np.isnan(slf._chisq_init):
msgs.error("Initial chi-squared is not a number")
if slf._chisq_init == np.Inf:
msgs.error("Input chi-squared is Infinite" + msgs.newline() +
"Perhaps the error spectrum is zero?")
# Fit the realisation
# msgs.info("Using {0:d} CPUs".format(slf._argflag['run']['ncpus']),verbose=slf._argflag['out']['verbose'])
tstart = time.time()
mr = alfit(myfunct_wrap,
slf._modpass['p0'],
parinfo=parinfo,
functkw=fa,
verbose=1,
modpass=slf._modpass,
miniter=slf._argflag['chisq']['miniter'],
maxiter=slf._argflag['chisq']['maxiter'],
ftol=slf._argflag['chisq']['ftol'],
gtol=slf._argflag['chisq']['gtol'],
xtol=slf._argflag['chisq']['xtol'],
ncpus=slf._argflag['run']['ncpus'],
fstep=slf._argflag['chisq']['fstep'])
# mr = alfit(myfunct_wrap, slf._modpass['p0'], parinfo=parinfo, functkw=fa,
# verbose=0, modpass=slf._modpass, miniter=slf._argflag['chisq']['miniter'], maxiter=slf._argflag['chisq']['maxiter'],
# ftol=slf._argflag['chisq']['ftol'], gtol=slf._argflag['chisq']['gtol'], xtol=slf._argflag['chisq']['xtol'],
# ncpus=slf._argflag['run']['ncpus'], fstep=slf._argflag['chisq']['fstep'])
tend = time.time()
if mr.status <= 0:
if mr.status == -20:
msgs.info("Random simulation was interrupted",
verbose=slf._argflag['out']['verbose'])
return
else:
msgs.error(mr.errmsg)
else:
msgs.info("Reason for convergence:" + msgs.newline() +
alutils.getreason(
mr.status, verbose=slf._argflag['out']['verbose']),
verbose=slf._argflag['out']['verbose'])
if mr.perror is None:
msgs.bug("Errors returned from random fit is None",
verbose=slf._argflag['out']['verbose'])
msgs.error("Cannot continue with the simulations")
# Get the results and print them to file
outrand = np.append(outrand, np.array([np.array(mr.params)]), axis=0)
alsave.save_model(
slf,
mr.params,
mr.perror,
[(tend - tstart) / 3600.0, mr.fnorm, mr.dof, mr.niter, mr.status],
printout=False,
extratxt=[slf._argflag['sim']['dirname'] + '/', ".rand" + ntxt])
# Plot the data (if requested)
if slf._argflag['plot']['fits']:
model = myfunct_wrap(mr.params, output=3, **fa)
alplot.make_plots_all(slf, model=model)
fileend = raw_input(msgs.input() +
"Press enter to view the fits -")
alplot.plot_showall()
if slf._argflag['sim']['systematics']:
# Calculate the systematics
msgs.test(
"SYSTEMATIC ERRORS -- Realisation {0:s}/{1:s} began {2:s}".
format(str(sim + 1), str(slf._argflag['sim']['random']),
time.ctime()),
verbose=slf._argflag['out']['verbose'])
ms = sim_systematics(slf, p0new, parinfo, ntxt, edgearr)
outsyst = np.append(outsyst,
np.array([np.array(ms.params)]),
axis=0)
ntxt = ":0" + nchr + "d}"
outname = "{0:s}.{1:s}_{2" + ntxt + "-{3" + ntxt
msgs.info("Saving the results from the random simulations",
verbose=slf._argflag['out']['verbose'])
randname = outname.format(
slf._argflag['run']['modname'], 'rand', slf._argflag['sim']['startid'],
slf._argflag['sim']['random'] + slf._argflag['sim']['startid'])
np.savetxt(randname, outrand)
if slf._argflag['sim']['systematics']:
msgs.info("Saving the results from the systematics simulations",
verbose=slf._argflag['out']['verbose'])
systname = outname.format(
slf._argflag['run']['modname'], 'syst',
slf._argflag['sim']['startid'],
slf._argflag['sim']['random'] + slf._argflag['sim']['startid'])
np.savetxt(systname, outsyst)
return