def set_background_estimator(self):
if self.background_type == 'Power Law':
self.background_estimator = components.PowerLaw()
self.bg_line_range = 'from_left_range'
elif self.background_type == 'Gaussian':
self.background_estimator = components.Gaussian()
self.bg_line_range = 'full'
elif self.background_type == 'Offset':
self.background_estimator = components.Offset()
self.bg_line_range = 'full'
elif self.background_type == 'Polynomial':
self.background_estimator = \
components.Polynomial(self.polynomial_order)
self.bg_line_range = 'full'
def add_polynomial_background(self, order=6):
"""
Add a polynomial background.
the background is added to self.background_components
Parameters
----------
order: int
The order of the polynomial
"""
background = create_component.Polynomial(order=order)
background.name = 'background_order_' + str(order)
background.isbackground = True
self.append(background)
self.background_components.append(background)
def _polynomial_order_changed(self, old, new):
self.background_estimator = components.Polynomial(new)
self.span_selector_changed()