def testLorentzian(self):
""" Test the Fourier transform of a exponential is a Lorentzian"""
# Target parameters
tg = {'tau': 100.0, # picoseconds
'beta': 1.0, # exponential
'height': 1.0 # We want identity, not just proporcionality
}
# Initial guess reasonably far from target parameters
fString = "name=StretchedExpFT,Height=3.0,Tau=50,Beta=1.5,Centre=0.0002;" +\
"name=FlatBackground,A0=0.0"
# carry out the fit
self.assertTrue(*do_fit(tg, fString, 'Lorentzian'))
def testLorentzian(self):
""" Test the Fourier transform of a exponential is a Lorentzian"""
# Target parameters
tg = {'tau': 100.0, # picoseconds
'beta': 1.0, # exponential
'height': 1.0 # We want identity, not just proporcionality
}
# Initial guess reasonably far from target parameters
fString = "name=StretchedExpFT,Height=3.0,Tau=50,Beta=1.5,Centre=0.0002;" +\
"name=FlatBackground,A0=0.0"
# carry out the fit
self.assertTrue(*do_fit(tg, fString, 'Lorentzian'))
def testGaussian(self):
""" Test PrimStretchedExpFT against the binned-integrated of
the Fourier transform of a gaussian
"""
# Target parameters
tg = {'tau': 20.0, # picoseconds
'beta': 2.0, # gaussian
'height': 1.0 # We want identity, not just proporcionality
}
# Initial guess reasonably far from target parameters
fString = "name=PrimStretchedExpFT,Height=2.0,Tau=30,Beta=1.5,Centre=0.0002;" +\
"name=FlatBackground,A0=0.0"
# Carry out the fit
self.assertTrue(*do_fit(tg, fString, 'GaussianIntegrated'))
def testGaussian(self):
""" Test PrimStretchedExpFT against the binned-integrated of
the Fourier transform of a gaussian
"""
# Target parameters
tg = {
'tau': 20.0, # picoseconds
'beta': 2.0, # gaussian
'height': 1.0 # We want identity, not just proporcionality
}
# Initial guess reasonably far from target parameters
fString = "name=PrimStretchedExpFT,Height=2.0,Tau=30,Beta=1.5,Centre=0.0002;" +\
"name=FlatBackground,A0=0.0"
# Carry out the fit
self.assertTrue(*do_fit(tg, fString, 'GaussianIntegrated'))