Model object and parameter accessΒΆ
In [1]:
from __future__ import print_function, division
from PyAstronomy import funcFit2 as fuf2
# Create a a model object representing a Gaussian
gf = fuf2.GaussFit()
# Get some information on the available parameters
gf.parameterSummary()
# Parameters can be accessed using the square bracket
# notation
gf["A"] = -10.0
gf["sig"] = 15.77
gf["off"] = 0.96
gf["mu"] = 7.5
print()
print("Parameters values: ")
print(" A : ", gf["A"])
print(" sig : ", gf["sig"])
print(" off : ", gf["off"])
print(" mu : ", gf["mu"])
print()
# Wildcards can be used to specify parameters
gf["*"] = 0.75
gf["o?f"] = 1.0
# More convenient overview of parameter status
gf.parameterSummary()
print()
# Exporting and assigning parameter values via dictionary
ps = gf.parameters()
print("Parameter name/value dictionary: ", ps)
# Assigning values from dictionary (identical values here)
gf.assignValues(ps)
------------------- Parameter summary --------------------
A = 0, free: F, restricted: F, related: F
mu = 0, free: F, restricted: F, related: F
sig = 0, free: F, restricted: F, related: F
off = 0, free: F, restricted: F, related: F
lin = 0, free: F, restricted: F, related: F
----------------------------------------------------------
Parameters values:
A : -10.0
sig : 15.77
off : 0.96
mu : 7.5
------------------- Parameter summary --------------------
A = 0.75, free: F, restricted: F, related: F
mu = 0.75, free: F, restricted: F, related: F
sig = 0.75, free: F, restricted: F, related: F
off = 1, free: F, restricted: F, related: F
lin = 0.75, free: F, restricted: F, related: F
----------------------------------------------------------
Parameter name/value dictionary: OrderedDict([('A', 0.75), ('mu', 0.75), ('sig', 0.75), ('off', 1.0), ('lin', 0.75)])